{"title":"HM Digital Indoor Grow Equipment and Supplies","description":"\u003cp\u003eHM Digital Indoor Grow Equipment and Supplies bring together the grow products available from HM Digital in one brand-focused collection.\u003c\/p\u003e\n\u003cp\u003eUse HM Digital Indoor Grow Equipment and Supplies when you want to compare products from the same manufacturer across grow tents, grow lights, climate control, harvesting tools, extraction equipment, planting supplies, watering parts, nutrients, propagation products, and other indoor gardening categories. Keeping the brand view together makes it easier to check compatibility, replacement parts, warranties, controllers, accessories, and system expansion options before you build or update a setup.\u003c\/p\u003e\n\u003cp\u003eHM Digital products can span several parts of a grow room, so a brand collection helps narrow the catalog before you compare dimensions, coverage, capacity, wattage, airflow, reservoir size, formula type, media format, or installation requirements. Review each product page for exact specifications, package contents, voltage, fittings, replacement items, and manufacturer guidance.\u003c\/p\u003e\n\u003cp\u003eAt Grow Tents Depot, HM Digital Indoor Grow Equipment and Supplies are organized so growers can browse HM Digital products without jumping between unrelated category pages.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, compare the selected products against your plant count, canopy size, growing method, available floor space, electrical capacity, water source, feeding routine, ventilation layout, and maintenance preferences. Checking those details up front helps avoid mismatched parts, undersized equipment, duplicate accessories, unstable environmental control, and unnecessary returns after the grow room is already assembled.\u003c\/p\u003e","products":[{"product_id":"hm-digital-1000-ppm-tds-calibration-solution-3-oz-90-ml","title":"HM Digital 1000 ppm TDS Calibration Solution 3 oz (90 ml)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eNaCl calibration solution 1000 ppm comes in lightweight HDPE plastic bottles. Sealed with a coated foam liner.\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e891144000038 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e12.0L x 12.3W x 3.8H (CS) 1.3L x 1.3W x 3.3H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.22 lbs.\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49264636428530,"sku":"HMDC1000","price":44.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-1000-ppm-tds-calibration-solution-3-oz-90-ml-1.jpg?v=1779768764"},{"product_id":"hm-digital-com-80-ec-tds-temp-waterproof-hydro-tester","title":"HM Digital COM-80 EC\/TDS\/Temp Waterproof Hydro Tester","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eThe COM-80 is an economically priced, reliable EC\/TDS meter that is ideal for testing applications such as hydroponics and gardening, pools and spas, aquariums and reef tanks, water ionizers, drinking water and more.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eMeasures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eFour scales: EC: uS, mS; TDS: ppm, ppt\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eWater resistant\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eMeasurement Range: 0-9990 u S; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eDigital Calibration (push button) to any point within the meter's range\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eAuto-off function, data-hold function and low-battery indicator\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eDisplay: large and easy-to-read LCD screen includes simultaneous temperature reading\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eFactory Calibrated: The COM-80 meter is calibrated with a 1413 u S solution-can be recalibrated with digital calibration using the push buttons\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003eEC Range: 0-9990 u S; 0-9.9 mS TDS Range: 0-5000 ppm (mg\/L); 0-5.0 ppt Temperature Range: 1-80 degrees C\/33-176 degrees F Resolution: 1 u S\/ppm; 0.1 mS\/ppt Temp. resolution: 0.1 degrees C\/F Accuracy: +\/- 2% EC-to-TDS Conversion Factor: NaCl (avg of 0.5) Calibration: Digital calibration by push button Probe: Fixed Housing: Water resistant Power source: 3 x 1.5V button cell batteries (included) (model LR44 or equivalent) Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) Weight: 53.9 g (1.9 oz)\u003c\/li\u003e\n\u003cli\u003e1 year warranty\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e891144000229 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e9.8L x 7.8W x 5.8H (CS) 6.0L x 1.3W x 0.6H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.13 lbs.\u003c\/li\u003e\u003ch6\u003eKit Contents\u003c\/h6\u003e\n\u003cli\u003ea protective cap and batteries.\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49264637018354,"sku":"HMDCOM80","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-com-80-ec-tds-temp-waterproof-hydro-tester-1.jpg?v=1779768804"},{"product_id":"hm-digital-ph-80-ph-temperature-meter","title":"HM Digital PH-80 pH\/Temperature Meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eThe PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics and gardening, pools and spas, aquariums and reef tanks, water ionizers, drinking water and more.\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eFEATURES\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eMeasures pH and temperature One-touch automatic digital calibration Water resistant Simultaneous temperature display Sleek, lightweight design Large LCD display Automatic Temperature Compensation (ATC) Auto-off function, data-hold function and low-battery indicator Includes storage solution in a sponge embedded in a translucent cap Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process Includes a cap, batteries, storage solution and pH 7.0 buffer\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eMeasures pH and temperature\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eOne-touch automatic digital calibration\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eWater resistant\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eSimultaneous temperature display\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eSleek, lightweight design\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eLarge LCD display\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eAutomatic Temperature Compensation (ATC)\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eAuto-off function, data-hold function and low-battery indicator\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e891144000175 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e8.0L x 9.8W x 6.0H (CS) 6.0L x 1.3W x 0.6H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.23 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the user manual: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/ph-80(2018)_manualver2.0e_180413.pdf\" target=\"_blank\" title=\"HMDPHM80 - User Guide\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the spec sheet: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/ph80specsheet.pdf\" target=\"_blank\" title=\"HMDPHM80 - Spec Sheet\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\u003ch6\u003eKit Contents\u003c\/h6\u003e\n\u003cli\u003estorage solution in a sponge embedded in a translucent cap\u003c\/li\u003e\n\u003cli\u003eFactory Calibrated: The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process\u003c\/li\u003e\n\u003cli\u003ea cap\u003c\/li\u003e\n\u003cli\u003ebatteries\u003c\/li\u003e\n\u003cli\u003estorage solution and pH 7.0 buffer\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49264637214962,"sku":"HMDPHM80","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-ph-80-ph-temperature-meter-1.jpg?v=1779768845"},{"product_id":"hm-digital-tds-3-handheld-tds-meter","title":"HM Digital TDS-3 Handheld TDS meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eIdeal for commercial use, the TDS-3 includes a carrying case with belt clip. It is highly efficent and accurate due to its advanced microprocessor technology. It features a measurement range of 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking image.\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e7.5L x 6.9W x 3.0H (CS) 7.0L x 3.0W x 3.0H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e891144000083 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.25 lbs.\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49264637542642,"sku":"HMDTDS3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-tds-3-handheld-tds-meter-1.jpg?v=1779768885"},{"product_id":"hm-digital-ph-stor-ph-electrode-storage-solution","title":"HM Digital PH-STOR pH Electrode Storage Solution","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eFor use with HM Digital's PH-200 and PH-80 (as well as other brands of pH meters). Always make sure your sensor is kept in an electrode storage solution. If dry, refill the pH meter cap with the PH-STOR storage solution. The sponge should be moist (not soaking wet).\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e891144000113 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e7.0L x 7.2W x 3.0H (CS) 1.0L x 1.0W x 4.0H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.2 lbs.\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49264637837554,"sku":"HMOPSTOR","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-ph-stor-ph-electrode-storage-solution-1.jpg?v=1779768926"},{"product_id":"hm-digital-hydromaster-100-continuous-ph-tds-ec-temp-meter","title":"HM Digital Hydromaster 100 - Continuous pH\/TDS\/EC\/Temp meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eHM-100: Continuous pH\/EC\/TDS\/Temp Monitor The HM-100 is a pH\/EC\/TDS\/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Four scales: pH, mS, ppm 0.5 (NaCl) Scale and 0.7 (442) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Digital Calibration (push button) to any point within the meter's range Data-hold function (Max. 6 data values) Large and easy-to-read LCD Screen Displays 3 parameters (pH\/EC or TDS\/Temp) simultaneously. Replaceable Sensors (model SP-C2 for Conductivity, SP-P5 for pH) Factory Calibrated (pH\/EC\/TDS) Includes power cable, pH 4 and 7 calibration solutions, pH storage solution Specifications Measurement Scales pH: pH Temp: degrees C, degrees F TDS: ppm (0.5 \/ ppm (0.7) EC: mS Range: pH: 0.1 - 14.0 pH Temperature: 0.0 - 60.0 degrees C \/ 32.0 - 122.0 degrees F TDS: 0 - 9990 ppm EC: 0 - 10.00 mS Resolution: pH: 0.1 pH Temp: 0.1 degrees C \/ 0.1 degrees F TDS: ppm: 1 ppm (0-999ppm) \/ 10ppm (1000-9990 ppm) EC: mS: 0.01 mS (0.01 - 20.00 mS) ATC: Yes Accuracy: pH: plus or minus 0.1 pH Temp: plus or minus 1 degrees C \/ degrees F TDS: plus or minus 2 % EC: plus or minus 2 % Power Source: 5V\/1A Function Environment: 0 - 50 degrees C (0-122 degrees C) \/ RH 80 % (EC Probe: 0 - 80 degrees C) Sensor Cable: 24-inch shielded Coaxial Cable Dimensions: About 4.3 x 7.9 x 1.3 inches Weight: 10 ounces for body \/ 5 ounces for two probes (without case)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC: \u003c\/strong\u003e850038872120 | 850038872120 | 850038872120 | 850038872120\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 1 | 20 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e4.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 14.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 10.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 8.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49286259146994,"sku":"HM-HM-100","price":263.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-hydromaster-100-continuous-ph-tds-ec-temp-meter-2.jpg?v=1779888553"},{"product_id":"hm-digital-hydromaster-portable-ph-tds-ec-temp","title":"HM Digital Hydromaster Portable - pH\/TDS\/EC\/Temp","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eHM-200: Portable pH\/EC\/TDS\/Temp Monitor The HM-200 is a versatile portable pH\/EC\/TDS\/Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Five scales: pH, uS, mS, ppm 0.5 (NaCl) Scale and 0.7 (442) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Large and easy-to-read LCD Screen Displays 3 parameters (pH\/EC or TDS\/Temp) simultaneously. Replaceable Sensors (model SP-C2 for Conductivity, SP-P5 for pH) Factory Calibrated (pH\/EC\/TDS) Includes protective rubber boot, 2 (AA) alkaline batteries, pH 4 and 7 calibration solutions, pH storage solution\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49286401851634,"sku":"HM-HM-200","price":254.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-hydromaster-portable-ph-tds-ec-temp-2.jpg?v=1779888941"},{"product_id":"hm-digital-hydromaster-500-continuous-ph-tds-ec-temp-meter","title":"HM Digital Hydromaster 500 - Continuous pH\/TDS\/EC\/Temp meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eHM-500 HydroMaster: EC\/TDS, pH, Temp Continuous Monitor The HM-500 is the most versatile continuous monitor indicating EC\/TDS, pH, and Temp providing accurate, stable readings the user can rely on. With its rechargeable battery this unit is portable or can be wall mounted.. To make is even more user friendly, it comes equipped with touch screen, high and low alarm set points, and recorded readings. It is ideal for hydroponics and other applications such as lab, pools, aquariums etc. Features Continuous pH\/EC\/TDS\/Temp Monitor Rechargeable battery RF Resistant Portable\/Wall Mount\/Benchtop Data Storage: Up to 20 measurement readings Auto Shut-Off: After 5 minutes Alarm: Adjustable High and Low Set Point and on\/off Display: LCD Touch-Type Screen with Auto Back lighting Probe: ABS with Platinum electrodes for EC \/ Single Junction pH Sensor Three Year Warranty Specifications Measurement Scales pH: pH Temp: degrees C, degrees F TDS: ppm (0.5 \/ ppm (0.7) \/ ppt (0.5) \/ ppt (0.7) EC: uS \/ mS Range: pH: 0.00 - 14.00 pH Temperature: 0.0 - 80.0 degrees C \/ 32.0 - 176 degrees F TDS: 0 - 9999 ppm \/ 0 - 10.00 ppt EC: 0 - 9999 uS \/ 0 - 20.00 mS Resolution: pH: 0.1 pH Temp: 0.1 degrees C \/ 0.1 degrees F TDS: ppm: 0.1ppm (0 - 99.9ppm) \/ 1 ppm (100-999ppm) \/ 10ppm (1000-9990 ppm) ppt: 0.01 ppt (0.01 - 10.00 ppt) EC: uS: 0.1 uS (0 - 99.9 uS) \/ 1 uS (100 - 999 uS) \/ 10uS (1000-9990 uS) mS: 0.01 mS (0.01 - 20.00 mS) ATC: Yes Accuracy: pH: plus or minus 0.1 pH Temp: plus or minus 1 degrees C \/ degrees F TDS: plus or minus 2 % EC: plus or minus 2 % Power Source: AC 110 V - 220V \/ Rechargeable Lithium Ion Battery Function Environment: 0 - 50 degrees C (0-122 degrees C) \/ RH 80 % (EC Probe: 0 - 80 degrees C) Sensor Cable: 24-inch shielded Coaxial Cable Dimensions: About 8 x 4 x 1.5 inches Weight: 15.2 ounces for body \/ 5 ounces for two probes (without case)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 1 | 20 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e4.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 14.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 10.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 8.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49286426820850,"sku":"HM-HM-500","price":315.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-hydromaster-500-continuous-ph-tds-ec-temp-meter-2.jpg?v=1779888998"},{"product_id":"hm-digital-pen-style-tds-temp-meter-w-case","title":"HM Digital Pen style TDS\/Temp meter w\/ case","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eTDS-3: Handheld TDS Meter with Carrying Case With its rugged design and build, the TDS-3 is an ideal meter (tool) that can be used for any application; Ranging from water purification, to hydroponics to industrial waste water treatment. It comes with a black vinyl carrying case, protecting it when carried in a toolbox. Features Hold Function Auto-off Function (After 10 min.) Built-in digital thermometer Includes a carrying case with belt clip Factory Calibrated with a 342 ppm NaCl solution. (Meter can be recalibrated with a mini-screwdriver). Specifications TDS Range: 0 - 9990 ppm (mg\/L) Temp. Range: 0 - 80 degrees Celsius Resolution: 0-999: 1 ppm; 1000-9990: 10 ppm (indicated by a 'x10' icon) Temperature Resolution: 0.1 degree Celsius (Celsius only) Accuracy: +\/- 2% EC-to-TDS Conversion Factor: NaCl (avg. 0.5) ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Fahrenheit) Power source: 2 x 1.5V button cell batteries (included) (LR44 or equivalent) Battery life: 1000 hours of usage Dimensions: 15.5 x 3.1 x 2.3cm (6.1 x 1.25 x 1 inches) Weight with case: 76.5g (2.7 oz) Weight without case: 56.7g (2 oz)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 10 | 500 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e9.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 12.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 12.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 8.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49286449692914,"sku":"HM-TDS-3","price":48.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-pen-style-tds-temp-meter-w-case-2.jpg?v=1779889050"},{"product_id":"hm-digital-20-pack-mix-of-1000-ppm-tds-ph-4-ph7-ph-storage-solutions","title":"HM Digital 20 pack mix of 1000 ppm TDS pH 4 pH7 pH storage solutions","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e20 Pack Assorted Solutions (5) 20 ml packets pH 4 buffer (5) 20 ml packets pH 7 buffer (5) 20 ml packets pH storage solution (5) 20 ml packets EC\/TDS calibration solution\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49425745674482,"sku":"HM-ASP-20","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-20-pack-mix-of-1000-ppm-tds-ph-4-ph7-ph-storage-solutions-1.jpg?v=1780018266"},{"product_id":"hm-digital-pro-series-pen-style-tds-ec-temp-meter","title":"HM Digital Pro Series Pen style TDS\/EC\/Temp meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eCOM-100: Waterproof Professional Series EC\/TDS Meter The COM-100 is a professional grade level EC\/TDS\/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures electrical conductivity (EC), total dissolved solids (TDS), and temperature. UPGRADED: Four scales: uS, mS, ppm 0.5 (NaCl) Scale and 0.7 (442) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing (IP-67 rating) Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Replaceable Sensor (model SP-C1) Factory Calibrated: The COM-100 meter is calibrated with a 1413 uS solution. UPGRADED: Includes translucent cap, 2 (AAA) batteries and lanyard. Specifications EC Range: 0 - 9990 uS; 0 - 9.99 mS TDS Range: 0 - 8560 ppm (0.7 Scale); 0 - 8.56 ppt (0.7 Scale) 0 - 5000 ppm (0.5 Scale); 0-5.00 ppt (0.5 Scale) Temperature Range: 0-55 degrees C; 32-130 degrees F Resolution: 0-99: 0.1 uS\/ppm\/ 0.01mS\/ppt; 100-999: 1 uS\/ppm; 1000-9990: 10 uS\/ppm. Temp. resolution is 0.1 degrees C\/F Accuracy: +\/- 2% EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user. Probe: Detachable platinum electrodes Housing: IP-67 Waterproof (submersible; floats) UPGRADED: Power source: 2 x Triple A (AAA) included Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 127g (4.5 oz)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 100 | 0 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49425984094450,"sku":"HM-COM-100","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-pro-series-pen-style-tds-ec-temp-meter-1.jpg?v=1780018330"},{"product_id":"hm-digital-pro-series-pen-style-ph-tds-ec-temp-meter","title":"HM Digital Pro Series Pen style pH\/TDS\/EC\/Temp meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eCOM-300: Waterproof Professional Series pH\/EC\/TDS\/Temp Meter The COM-300 is a professional grade level pH\/EC\/TDS\/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), and Temperature Five scales: pH, uS, mS, ppm 0.5 (NaCl) Scale and 0.7 (442) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing (IP-67 rating) Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Replaceable Sensor (model SP-C3) Factory Calibrated (pH\/EC\/TDS) Includes translucent cap, 2 (AAA) alkaline batteries, pH 4 and 7 calibration solutions, pH storage solution and lanyard Specifications pH Range: 0 - 14 pH EC Range: 0 - 9990 uS; 0 - 9.99 mS TDS Range: 0 - 8560 ppm (0.7 Scale); 0 - 5000 ppm (0.5 Scale) Temperature Range: 0-55 degrees C; 32-130 degrees F Resolution: pH: 0.1pH EC 0 - 999: 1uS; 1000 - 9990: uS; 0- 9.99 mS:0.01 mS TDS 0 - 999: 1ppm \/ 1000 - 9990: 10 ppm Temperature 0.1 degrees C\/ degrees F Accuracy: +\/- 2% EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user. Probe: Detachable platinum electrodes and pH glass sensor with reference tube electrodes Housing: IP-67 Waterproof (submersible; floats) Power source: 2 x Triple A (AAA) included Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 101.5g (3.6 oz)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 50 | 0 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49426167890162,"sku":"HM-COM-300","price":181.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-pro-series-pen-style-ph-tds-ec-temp-meter-1.jpg?v=1780018396"},{"product_id":"hm-digital-waterproof-professional-series-ph-ec-tds-temp-meter","title":"HM Digital Waterproof Professional Series pH\/EC\/TDS\/Temp Meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003eCOM-300L: Waterproof Professional Series pH\/EC\/TDS\/Temp Meter The COM-300L is a professional grade level pH\/EC\/TDS\/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature Five scales: pH, uS, mS, ppm 0.5 (NaCl) Scale and 0.7 (442) Scale Automatic Temperature Compensation (ATC) using three temperature coefficients Waterproof housing (IP-67 rating) Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading Replaceable Sensor (model SP-C3) Factory Calibrated (pH\/EC\/TDS) Includes translucent cap, 2 (AAA) alkaline batteries, pH 4 and 7 calibration solutions, pH storage solution and lanyard Specifications pH Range: 0 - 14 pH EC Range: 0 - 9990 uS; 0 - 9.99 mS TDS Range: 0 - 8560 ppm (0.7 Scale); 0 - 5000 ppm (0.5 Scale) Temperature Range: 0-55 degrees C; 32-130 degrees F Resolution: 0-99: 0.1 uS\/ppm\/ 0.01mS; 100-999: 1 uS\/ppm; 1000-9990: 10 uS\/ppm. Temp. resolution is 0.1 degrees C\/F Accuracy: +\/- 2% EC to TDS Conversion Factor: Non-linear conversions for KCl, 442TM or NaCl solutions, selected by the user. 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With its versatility and durability, it is ideal for testing applications such as hydroponics and gardening, pools and spas, aquariums and reef tanks, water ionizers, drinking water and more. Features Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for nutrient testing Four scales: EC: uS, mS; TDS: ppm, 0.5 (NaCl) and 0.7 (442) Automatic Temperature Compensation (ATC) Water resistant Digital Calibration (push button) to any point within the meter's range Auto-off function, data-hold function and low-battery indicator Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The COM-80 meter is calibrated with a 1413 uS solution. Includes a protective cap and batteries Specifications EC Range: 0 - 9990 uS; 0 - 9.9 mS TDS Range: 0 - 5000 ppm (0.5 Scale); 0-8560 ppm (0.7 Scale) Temperature Range: 1-80 degrees C; 33-176 degrees F Resolution: 1 uS\/ppm; 0.1 mS Temp. 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With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment, wine, coffee, and agriculture. Features Waterproof housing (IP-67 rating) Digital automatic calibration (one point), with digital fine tuning Automatic Temperature Compensation (ATC) Auto-off function, data-hold function and low-battery indicator Easy-to-read LCD screen with simultaneous temperature display Replaceable Sensor (model SP-P2) Factory Calibrated: The PH-200 meter is three-point checked and factory calibrated to pH 7.0. UPGRADED: Includes a translucent cap, 2 Triple A (AAA) batteries, lanyard, and pH 7.0 buffer (sachet) Specificaitons pH Range: 0 - 14 Temperature Range: 0-55 degrees C; 32-130 degrees F Resolution: 0.01 pH; Temperature resolution is 0.1 degrees C\/F Accuracy: +\/- 0.1 pH; Temperature accuracy is +\/-1% Minimum EC\/TDS: 5 uS\/10 ppm Electrode: Replaceable glass sensor and reference tube electrodes Housing: IP-67 Waterproof (submersible; floats) UPGRADED: Power source: 2 x Triple A (AAA) included Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight: 96.4 g (3.4 oz)\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49427283280114,"sku":"HM-PH-200","price":116.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-pro-series-pen-style-ph-temp-meter-1.jpg?v=1780018728"},{"product_id":"hm-digital-pen-style-ph-temp-meter","title":"HM Digital Pen style pH\/Temp meter","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003ePH-80: pH HydroTester Series The PH-80 has proven to be the MOST reliable pH meter in its price range. It has become a favorite in such applications as hydroponics and gardening, pools and spas, aquariums and reef tanks, water ionizers, drinking water and more. Features Measures pH and Temperature One-touch automatic digital calibration Water resistant Simultaneous temperature display Large LCD display Automatic Temperature Compensation (ATC) Auto-off function, data-hold function and low-battery indicator Factory Calibrated: The PH-80 meter is factory calibration to pH 7.0. Includes a translucent cap, batteries, storage solution and pH 7.0 buffer (powder) Specifications pH Range: 0 - 14 Temperature Range: 1-55 degrees C; 32-130 degrees F Resolution: 0.1 pH; Temperature resolution is 0.1 degrees C\/F Accuracy: +\/- 0.2 pH; Temperature accuracy is +\/-2% Calibration: Digital automatic calibration (one point) Minimum EC\/TDS: 10 uS\/5 ppm Electrode: Glass sensor and reference tube electrodes Power source: 3 x 1.5V button cell batteries (model LR44 or equivalent; included) Dimensions: 15.3 x 3.2 x 1.8 cm (6.0 x 1.3 x 0.7 inches) Weight: 53.9 g (1.9 oz)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eEACH: \u003c\/strong\u003eCASE | MASTER CASE | PALLET\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUPC:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003equantity: \u003c\/strong\u003e1 | 10 | 200 | 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (lb): \u003c\/strong\u003e0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (in): \u003c\/strong\u003e0.00 | 0.00 | 0.00 | -\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49427554271474,"sku":"HM-PH-80","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-pen-style-ph-temp-meter-1.jpg?v=1780018797"},{"product_id":"hm-digital-ph-4-0-buffer-solution-20-packets-of-20-ml","title":"HM Digital pH 4.0 buffer solution - 20 packets of 20 ml","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e20 Pack pH 4 Buffer Solution (20) packets of 20 ml pH 4 buffer\u003c\/li\u003e","brand":"HM Digital","offers":[{"title":"Default Title","offer_id":49427826344178,"sku":"HM-PH-P4","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/hm-digital-ph-4-0-buffer-solution-20-packets-of-20-ml-1.jpg?v=1780018876"},{"product_id":"hm-digital-ph-electrode-storage-solution-60-cc","title":"HM Digital pH Electrode storage solution - 60 cc","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003ePH-STOR: pH Electrode Storage Solution PH storage solution for HM Digital's PH-200 \/ PH-80 as well as other brands of pH meters. 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