{"title":"GroStar Planting \u0026 Watering","description":null,"products":[{"product_id":"grostar-gs1-ph-temp-2-in-1-pen","title":"GroStar GS1 PH\/Temp (2-IN-1) Pen","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI11010 - GroStar GS1 PH\/Temp (2-IN-1) Pen Lab grade instruments designed specifically for growers! Includes: - 2-year warranty (instrument) - 1-year warranty, Swiss made (probe) - pH 7 and pH4 calibration solution (50ml bottle each) - KCL storage solution (10ml bottle) - Lanyard and user manual\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003eFeatures: - Measures pH and temperature - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Easy-to-use design and fast calibration adjustment - Double junction replaceable probe, so you don't have to discard the entire pen when the probe reaches its end of life - Large 3-color backlit screen gives you clear information - IP67 waterproof rating - Powered by AAA batteries with auto off function - Automatic temperature compensation\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031574 (UPC-A) 10810214031571 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.3L x 10.0W x 1.8H (EA) 14.2L x 20.9W x 18.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.6 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs1phuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS1 pH Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264053485810,"sku":"AI11010","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs1-ph-temp-2-in-1-pen-1.jpg?v=1779755766"},{"product_id":"grostar-gs3-ec-500ppm-700ppm-temp-4-in-1-pen","title":"GroStar GS3 EC\/500ppm\/700ppm\/Temp (4-IN-1) Pen","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI11030 - GroStar GS3 EC\/500ppm\/700ppm\/Temp (4-IN-1) Pen Lab grade instruments designed specifically for growers! Includes: - 2-year warranty (instrument) - 1-year warranty (probe) - 2.77 EC calibration solution, 50 ml bottle Features: - Measures conductivity EC, PPM (500), PPM (700) and temperature - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Titanium alloy sensor designed for high accuracy EC measurement - Easy-to-use design and fast calibration adjustment. - Large 3-color backlit screen gives you clear information - IP67 waterproof rating - Replaceable probe - Powered by AAA batteries with auto off function - Automatic temperature compensation\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031598 (UPC-A) 10810214031595 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.3L x 10.0W x 1.8H (EA) 14.2L x 20.9W x 18.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.6 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs3ecuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS3 EC Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264059384050,"sku":"AI11030","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs3-ec-500ppm-700ppm-temp-4-in-1-pen-1.jpg?v=1779755795"},{"product_id":"grostar-gs4-ph-ec-500ppm-700ppm-temp-5-in-1-combo-pen","title":"GroStar GS4 pH\/EC\/500ppm\/700ppm\/Temp (5-in-1) Combo Pen","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI21040 - GroStar GS4 pH\/EC\/500ppm\/700ppm and Temp (5-in-1) Combo Pen Lab grade instruments designed specifically for growers! Includes: - 2-year warranty (instrument) - 1-year warranty (probe) - pH 7 and pH4 calibration solution (50ml bottle each) - 2.77 EC calibration solution (50ml bottle) - KCL storage solution (10ml bottle) - Lanyard and user manual Features: - Measures pH, conductivity (EC and 500ppm\/700ppm) and temperature (5-in-1) - Compatible with all GroStar replacement probes: pH, Soil pH, EC and PH\/EC Combo - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Easy-to-use design and fast calibration adjustment - Double junction replaceable probe, so you don't have to discard the entire pen when the probe reaches its end of life - Large 3-color backlit screen gives you clear information - Durable structure, IP67 waterproof rating - Powered by AAA batteries with auto off function - Automatic temperature compensation\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.3L x 10.0W x 1.8H (EA) 14.2L x 20.9W x 18.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031604 (UPC-A) 10810214031601 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.8 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs4phecuserguidefinalv6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS4 pH EC Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264063938802,"sku":"AI21040","price":185.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs4-ph-ec-500ppm-700ppm-temp-5-in-1-combo-pen-1.jpg?v=1779755824"},{"product_id":"grostar-gs2-soil-ph-temp-2-in-1-pen","title":"GroStar GS2 Soil PH\/Temp (2-IN-1) Pen","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI31020 - GroStar GS2 Soil PH\/TEMP (2-IN-1) Pen Lab grade instruments designed specifically for growers! Includes: - 2-year warranty (instrument) - 1-year warranty Swiss made (probe) - pH 7 and pH 4 solution (50ml bottles of each) - KCL soaking solution (10ml bottle) - Cleaning brush - Hole dibber - Lanyard and user manual Features: - Measures pH and temperature in nutrient solution, soil, coco coir, rockwool, and many other media types - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb - PTFE ring prevents a clogged junction caused by soil particles, significantly increases durability - Backed by GroStar proprietary sensor technology from Switzerland - Easy-to-use design and fast calibration adjustment - Replaceable Swiss LabSen Spear Soil pH Probe - Large 3-color backlit screen gives you clear information - Durable structure, IP67 waterproof rating - Powered by AAA batteries with auto off function - Automatic temperature compensation\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eROHS_Registration: \u003c\/strong\u003eYes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031581 (UPC-A) 10810214031588 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.3L x 10.0W x 1.8H (EA) 14.2L x 20.9W x 18.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.7 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs2soilphuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS2 Soil pH Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264069673202,"sku":"AI31020","price":258.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs2-soil-ph-temp-2-in-1-pen-1.jpg?v=1779755851"},{"product_id":"grostar-gs1-e-replacement-ph-electrode","title":"GroStar GS1-E replacement pH electrode","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI58010 - GroStar GS1-E replacement pH electrode\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e- Replacement GS1 probe measures pH and temperature - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Low-resistance lithium glass membrane - double junction structure uses blue gel electrolyte without the air bubble - 1-year warranty\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e1.3L x 4.0W x 1.3H (EA) 3.8L x 7.1W x 5.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031611 (UPC-A) 10810214031618 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.2 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs1phuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS1 pH Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264074260722,"sku":"AI58010","price":80.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs1-e-replacement-ph-electrode-1.jpg?v=1779755880"},{"product_id":"grostar-gs2-e-replacement-soil-spear-ph-electrode","title":"GroStar GS2-E replacement Soil Spear pH electrode","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI58020 - GroStar GS2-E replacement Soil Spear pH electrode\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e- Spear pH Probe measures pH and temperature in nutrient solution, soil, coco coir, rockwool, and many other media types - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb - PTFE ring prevents a clogged junction caused by soil particles, significantly increases durability - Backed by Apera's Swiss LabSen proprietary sensor technology - 1-year warranty\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e1.3L x 4.0W x 1.3H (EA) 5.7L x 10.5W x 7.5H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031628 (UPC-A) 10810214031625 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.3 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs2soilphuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS2 Soil pH Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264079503602,"sku":"AI58020","price":187.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs2-e-replacement-soil-spear-ph-electrode-1.jpg?v=1779755909"},{"product_id":"grostar-gs3-e-replacement-ec-electrode","title":"GroStar GS3-E replacement EC electrode","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI58030 - GroStar GS3-E replacement EC electrode\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e- Measures conductivity EC, PPM (500), PPM (700) and temperature - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - Titanium alloy sensor designed for high accuracy EC measurement - 1-year warranty\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e1.3L x 4.0W x 1.3H (EA) 3.8L x 7.1W x 5.1H (CS)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031635 (UPC-A) 10810214031632 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.2 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs3ecuserguidev6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS3 EC Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264083894514,"sku":"AI58030","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs3-e-replacement-ec-electrode-1.jpg?v=1779755939"},{"product_id":"grostar-gs4-e-replacement-ph-ec-combo-electrode","title":"GroStar GS4-E replacement pH\/EC combo electrode","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAI58040 - GroStar GS4-E replacement pH\/EC combo electrode\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e- Measures pH, conductivity (EC and PPM) and temperature - Combo probe built with lithium glass membrane and titanium alloy to ensure high accuracy and durability - Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance - double junction structure uses blue gel electrolyte without the air bubble - 1-year warranty\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e1.3L x 4.0W x 1.3H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031642 (UPC-A) 10810214031649 (GTIN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.2 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the instructions: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/gs4phecuserguidefinalv6-e.pdf\" target=\"_blank\" title=\"User Guide - GroStar GS4 pH EC Pen Tester\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264088678642,"sku":"AI58040","price":100.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-gs4-e-replacement-ph-ec-combo-electrode-1.jpg?v=1779755967"},{"product_id":"grostar-ph-calibration-kit-ph-4-7-8-oz-each","title":"GroStar pH calibration kit (pH 4\/7 8 oz. each)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eGroStar by Apera pH calibration kit (pH 4\/7, 8 oz. each)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214030010 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.0L x 7.0W x 4.0H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e1 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the SDS P H ORP Storage Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-phorpstoragesolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H ORP Storage Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the SDS P H 4.00 Buffer Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-ph4.00buffersolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H 4.00 Buffer Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the SDS P H 7.00 Buffer Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-ph7.00buffersolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H 7.00 Buffer Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\u003ch6\u003eKit Contents\u003c\/h6\u003e\n\u003cli\u003e(1) 8 oz. pH 4.0 calibration solution\u003c\/li\u003e\n\u003cli\u003e(1) 8 oz. pH 7.0 calibration solution\u003c\/li\u003e\n\u003cli\u003epH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings.\u003c\/li\u003e\n\u003cli\u003eHigh accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25 C (77 F). ideal for the calibration of all pH meters\u003c\/li\u003e\n\u003cli\u003eColor-coded, double-sealed, 1-year shelf life\u003c\/li\u003e\n\u003cli\u003eExpiration date and temperature\/ph reference chart provided for reference\u003c\/li\u003e\n\u003cli\u003eNon-hazardous product\u003c\/li\u003e\n\u003cli\u003eCalibration Solution should be stored in a cool place out of direct sun and heat.\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264093167858,"sku":"AI61113","price":49.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-ph-calibration-kit-ph-4-7-8-oz-each-1.jpg?v=1779755997"},{"product_id":"grostar-ph-calibration-kit-ph-4-7-10-8-oz-each","title":"GroStar pH calibration kit (pH 4\/7\/10 8 oz. each)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eGroStar by Apera pH calibration kit (pH 4\/7\/10, 8 oz. each)\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214030034 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.0L x 7.0W x 4.0H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e1.5 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the SDS P H 4.00 Buffer Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-ph4.00buffersolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H 4.00 Buffer Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the SDS P H ORP Storage Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-phorpstoragesolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H ORP Storage Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the SDS P H 7.00 Buffer Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-ph7.00buffersolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H 7.00 Buffer Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownload the SDS P H 10.01 Buffer Solution Apera Instruments: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-ph10.01buffersolution-aperainstruments.pdf\" rel=\"noopener noreferrer\" target=\"_blank\" title=\"SDS P H 10.01 Buffer Solution Apera Instruments\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e\u003ch6\u003eKit Contents\u003c\/h6\u003e\n\u003cli\u003e(1) pH 4.0 calibration solution 8 oz.\u003c\/li\u003e\n\u003cli\u003e(1) pH 7.0 calibration solution 8 oz.\u003c\/li\u003e\n\u003cli\u003e(1) pH 10.0 calibration solution 8 oz.\u003c\/li\u003e\n\u003cli\u003epH measuring equipment must be cleaned and calibrated regularly to ensure accurate readings\u003c\/li\u003e\n\u003cli\u003eHigh accuracy (0. 01 pH): standardized against NIST Certified pH references within 0. 01 pH at 25 C (77 F). ideal for the calibration of all pH meters\u003c\/li\u003e\n\u003cli\u003eColor-coded, double-sealed, 1-year shelf life\u003c\/li\u003e\n\u003cli\u003eExpiration date and temperature\/ph reference chart provided for reference\u003c\/li\u003e\n\u003cli\u003eNon-hazardous product\u003c\/li\u003e\n\u003cli\u003eCalibration Solution should be stored in a cool place out of direct sun and heat\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264096641266,"sku":"AI61115","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-ph-calibration-kit-ph-4-7-10-8-oz-each-1.jpg?v=1779756026"},{"product_id":"grostar-ph-probe-maintanence-kit","title":"GroStar pH Probe Maintanence Kit","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eAll-in-one maintanence kit provides everything you need to maintain, clean and store your GroStar pH probe\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031659 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e5.0L x 7.0W x 4.0H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e1 lbs.\u003c\/li\u003e\u003ch6\u003eKit Contents\u003c\/h6\u003e\n\u003cli\u003e3M KCL storage solution (4oz.)\u003c\/li\u003e\n\u003cli\u003eCleaning solution (8oz.)\u003c\/li\u003e\n\u003cli\u003eCalPod solution organizer\u003c\/li\u003e\n\u003cli\u003eProbe cleaning brush\u003c\/li\u003e\n\u003cli\u003eWash bottle\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264099885298,"sku":"AI61170","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-ph-probe-maintanence-kit-1.jpg?v=1779756055"},{"product_id":"grostar-ec-calibration-kit-2-77-ec-8-oz-each","title":"GroStar EC Calibration Kit (2.77 EC 8 oz. each)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Details: \u003c\/strong\u003eGroStar by Apera EC Calibration Kit (2.77 EC, 8 oz. each)\u003c\/li\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cli\u003e- 2.77 EC conductivity standard calibration solution - Used as a reference or checking solution to ensure you have adequately cleaned the EC\/ppm probe - Calibration Solution should be stored in a cool place out of direct sun and heat. - Non-hazardous product - Please keep out of reach of children - Made in USA\u003c\/li\u003e\u003ch6\u003eSpecifications\u003c\/h6\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarcodes: \u003c\/strong\u003e810214031666 (UPC-A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions: \u003c\/strong\u003e2.5L x 2.5W x 5.3H (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Weight: \u003c\/strong\u003e0.5 lbs.\u003c\/li\u003e\u003ch6\u003eData Sheets\u003c\/h6\u003e\n\u003cli\u003eDownload the data sheet: \u003ca href=\"https:\/\/s3.amazonaws.com\/hydrofarmpubdocs\/sds-conductivitystandardsolution1413-aperainstrument.pdf\" target=\"_blank\" title=\"SDS - 1413 Conductivity Standard Solution - Apera Instruments\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\n\u003c\/li\u003e","brand":"GroStar","offers":[{"title":"Default Title","offer_id":49264103882994,"sku":"AI71117","price":46.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/6634\/3666\/files\/grostar-ec-calibration-kit-2-77-ec-8-oz-each-1.jpg?v=1779756083"}],"url":"https:\/\/growtentsdepot.com\/collections\/grostar-planting-watering.oembed","provider":"Grow Tents Depot","version":"1.0","type":"link"}