{"title":"Calibration and Maintenance Solutions","description":"","products":[{"product_id":"ph-4-01-calibration-solution-quart","title":"pH 4.01 Calibration Solution - quart","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). \n  Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate \n  calibration possible. Do not reuse calibration solution, as once it has been \n  used, it is no longer sterile and may result in improper readings. Pour a small \n  amount into a shot glass and discard after use. Suitable for all makes and models \n  of pH pens and meters.\u003c\/p\u003e\n\u003cp\u003epH Calibration Solution is available in single-use sachets, as well as 230 \n  ml (approx. 8 ounces.) and quart bottles. We also offer a \"twin-pack\" \n  containing one 8 ounce bottle each of both 4.01 and 7.01 calibration solution. \n  All pH calibration solutions that we offer are made by either Hanna, Green Air \n  Products or General Hydroponics.\u003c\/p\u003e","brand":"BFG Supply","offers":[{"title":"Each","offer_id":41930540941397,"sku":"6142","price":14.54,"currency_code":"USD","in_stock":true},{"title":"Case of 12","offer_id":42385987371093,"sku":"6142-CS12","price":174.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/ph-401-calibration-solution-quart-6142-3171491.jpg?v=1767475507"},{"product_id":"hanna-cal-check-solution-20ml-sachet","title":"Hanna Cal Check solution - 20ml Sachet","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate calibration possible. Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use, or use Hanna's single use sachets for ease of use. Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e\n\u003cp\u003eSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.\u003c\/p\u003e\n\u003cp\u003eSold individually or by the box of 25.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541400149,"sku":"6413","price":1.98,"currency_code":"USD","in_stock":false},{"title":"Box of 25","offer_id":42385984815189,"sku":"6413-BOX25","price":49.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/hanna-cal-check-solution-20ml-sachet-6413-5606368.jpg?v=1767475507"},{"product_id":"hanna-1382-ppm-calibration-solution-20-ml-sachet","title":"Hanna 1382 PPM Calibration Solution - 20 mL Sachet","description":"\u003cp\u003eTDS and EC meters should be calibrated frequently (every 1-4 weeks, depending on use). Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use or use the single use sachets.\u003c\/p\u003e\n\u003cp\u003eTDS and EC Calibration Solution is available in a variety of sizes ranging from single-use sachets to quart bottles. All calibration solutions we offer are made by either Hanna or General Hydroponics.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe \u003cstrong\u003e1382ppm \u003c\/strong\u003eCalibration Solution will work for the following TDS testers and meters:\u003c\/em\u003e\u003cbr\u003eHanna Primo TDS Tester\u003cbr\u003eHanna pH\/EC\/TDS\/Temp Waterproof Tester (HI98129)\u003cbr\u003eHanna EC\/TDS\/Temp Waterproof Tester (DiST5 \/ HI98311)\u003c\/p\u003e\n\u003cp\u003eThe 1382ppm solution uses the NaCl scale \/ 0.50 conversion factor.\u003c\/p\u003e\n\u003cp\u003eSold individually or by the box of 25.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541465685,"sku":"6420","price":1.6,"currency_code":"USD","in_stock":true},{"title":"Box of 25","offer_id":42385984716885,"sku":"6420-BOX25","price":40.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/hanna-1382-ppm-calibration-solution-20-ml-sachet-6420-3671660.jpg?v=1767475507"},{"product_id":"groline-electrode-cleaning-solution-20-ml-sachet","title":"GroLine Electrode Cleaning Solution - 20 ml Sachet","description":"\u003cp\u003epH and TDS electrodes should be cleaned frequently (every 1-4 weeks, depending on use) to prevent premature failure and maintain accuracy.\u003c\/p\u003e\n\u003cp\u003eSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is cleaned using these HANNA sachets, it is using a newly-opened bottle of solution.\u003c\/p\u003e\n\u003cp\u003eTo use the Hanna Electrode Cleaning Solution, simply put a small amount (enough to cover the probe) in a Dixie cup or shot glass and let the electrode sit in the solution for up to 24 hours, then rinse. Or, choose a single-use sachet for ease of use.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541563989,"sku":"6423","price":1.6,"currency_code":"USD","in_stock":true},{"title":"Box of 25","offer_id":42385983668309,"sku":"6423-BOX25","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-electrode-cleaning-solution-20-ml-sachet-6423-3520322.jpg?v=1767475506"},{"product_id":"groline-ph-storage-solution-500-ml","title":"GroLine pH Storage Solution - 500 ml","description":"\u003cp\u003eTo minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist. Store the electrode with a few drops of HI 70300 storage solution in the protective cap.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541596757,"sku":"6428","price":18.32,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983995989,"sku":"6428-CS5","price":91.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-storage-solution-500-ml-6428-8869758.png?v=1767475507"},{"product_id":"groline-ph-storage-solution-230-ml","title":"GroLine pH Storage Solution - 230 ml","description":"\u003cp\u003eTo minimize clogging and ensure fast response time, always keep the glass bulb and the junction of your pH electrode moist. Store the electrode with a few drops of HI 70300 storage solution in the protective cap.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541727829,"sku":"6429","price":14.65,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983963221,"sku":"6429-CS5","price":73.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-storage-solution-230-ml-6429-1475035.jpg?v=1767475507"},{"product_id":"hanna-1500-ppm-tds-calibration-solution-20-ml-sachet","title":"Hanna 1500 ppm TDS Calibration Solution - 20 mL Sachet","description":"\u003cp\u003eTDS and EC meters should be calibrated frequently (every 1-4 weeks, depending on use). Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use or use the sachets.\u003c\/p\u003e\n\u003cp\u003eTDS and EC Calibration Solution is available in a variety of sizes ranging from single-use sachets to quart bottles. All calibration solutions that we offer are made by either Hanna or General Hydroponics.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThe \u003cstrong\u003e1500ppm \u003c\/strong\u003eCalibration Solution will work for the following TDS testers and meters:\u003c\/em\u003e\u003cbr\u003eHanna Gro'Chek Continuous pH\/TDS Monitor (HI981404N)\u003cbr\u003eHanna Gro'Chek Portable pH\/TDS\/EC Meters (HI9813, HI9813-0, HI9813-6)\u003cbr\u003eHanna pH\/EC\/TDS\/Temp Waterproof Tester (HI98129)\u003cbr\u003eHanna Gro'Chek Continuous TDS Monitor with Large Display (HI983301N)\u003cbr\u003eHanna TDS Tester (DiST1 \/ HI98300)\u003cbr\u003eHanna EC\/TDS\/Temp Waterproof Tester (DiST5 \/ HI98311)\u003c\/p\u003e\n\u003cp\u003eThe 1500ppm solution uses the 442 scale \/ 0.70 conversion factor.\u003c\/p\u003e\n\u003cp\u003eSold individually or by the box of 25.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541826133,"sku":"6432","price":1.6,"currency_code":"USD","in_stock":true},{"title":"Box of 25","offer_id":42385984782421,"sku":"6432-BOX25","price":40.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/hanna-1500-ppm-tds-calibration-solution-20-ml-sachet-6432-9650077.jpg?v=1767475506"},{"product_id":"groline-electrode-cleaning-solution-230ml","title":"Groline Electrode Cleaning solution - 230ml","description":"\u003cp\u003epH and TDS electrodes should be cleaned frequently (every 1-4 weeks, depending on use) to prevent premature failure and maintain accuracy.\u003c\/p\u003e\n\u003cp\u003eTo use the Hanna Electrode Cleaning Solution, simply put a small amount (enough to cover the probe) in a Dixie cup or shot glass and let the electrode sit in the solution for up to 24 hours, then rinse. Or, choose a single-use sachet for field use.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930541858901,"sku":"6434","price":14.65,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983701077,"sku":"6434-CS5","price":73.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-electrode-cleaning-solution-230ml-6434-3626030.jpg?v=1767475507"},{"product_id":"groline-ph-4-01-calibration-solution-230ml","title":"GroLine pH 4.01 Calibration Solution - 230ml","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate calibration possible. Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use, or use Hanna's single use sachets for ease of use. Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e\n\u003cp\u003eSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930545561685,"sku":"6422","price":14.65,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983799381,"sku":"6422-CS5","price":73.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-401-calibration-solution-230ml-6422-3136653.png?v=1767475450"},{"product_id":"groline-ph-7-01-calibration-solution-230ml","title":"Groline pH 7.01 Calibration Solution - 230ml","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate calibration possible. Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use, or use Hanna's single use sachets for ease of use. Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e\n\u003cp\u003eSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930545659989,"sku":"6426","price":14.65,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983897685,"sku":"6426-CS5","price":73.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-701-calibration-solution-230ml-6426-9218988.png?v=1767475450"},{"product_id":"hanna-1413-ms-cm-calibration-solution-20ml-sachet","title":"Hanna 1413 mS\/cm Calibration Solution - 20ml Sachet","description":"\u003cp\u003eTDS and EC meters should be calibrated frequently (every 1-4 weeks, depending on use). Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use or use the single use sachets.\u003c\/p\u003e\n\u003cp\u003eTDS and EC Calibration Solution is available in a variety of sizes ranging from single-use sachets to quart bottles. All calibration solutions we offer are made by either Hanna or General Hydroponics.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003e1413 mS\/cm \u003c\/strong\u003eCalibration Solution is used to calibrate EC meters.\u003c\/p\u003e\n\u003cp\u003eSold individually or by the box of 25.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930546380885,"sku":"6419","price":1.6,"currency_code":"USD","in_stock":true},{"title":"Box of 25","offer_id":42385984749653,"sku":"6419-BOX25","price":40.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/hanna-1413-mscm-calibration-solution-20ml-sachet-6419-4969750.jpg?v=1767475449"},{"product_id":"groline-ph-4-01-calibration-solution-500ml","title":"GroLine pH 4.01 Calibration Solution - 500ml","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate calibration possible. Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use (unless your using using the sachets). Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930546970709,"sku":"6833","price":18.32,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983832149,"sku":"6833-CS5","price":91.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-401-calibration-solution-500ml-6833-1027431.png?v=1767475449"},{"product_id":"groline-ph-7-01-calibration-solution-500ml","title":"GroLine pH 7.01 Calibration Solution - 500ml","description":"\u003cp\u003epH meters should be calibrated frequently (every 1-4 weeks, depending on use). Two-point calibration (using both 4.0 \u0026amp; 7.0 buffers) ensures the most accurate calibration possible. Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use (unless your using using the sachets). Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930547101781,"sku":"6834","price":18.32,"currency_code":"USD","in_stock":true},{"title":"Case of 5","offer_id":42385983930453,"sku":"6834-CS5","price":91.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/groline-ph-701-calibration-solution-500ml-6834-2521671.png?v=1767475448"},{"product_id":"bluelab-2-77ec-27-7-cf-conductivity-solution-250ml","title":"Bluelab 2.77EC (27.7 CF) Conductivity Solution - 250ml","description":"\u003cp\u003eThe 2.77EC solution is 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. Please keep out of reach of children. They should be stored with the lids securely tightened.\u003c\/p\u003e","brand":"Bluelab USA Corporation","offers":[{"title":"Each","offer_id":41930550214741,"sku":"5217","price":9.86,"currency_code":"USD","in_stock":true},{"title":"Case of 6","offer_id":42385976655957,"sku":"5217-CS6","price":59.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/bluelab-277ec-277-cf-conductivity-solution-250ml-5217-7921781.jpg?v=1767475387"},{"product_id":"quick-cal-solution-solution-for-groline-ph-and-ec-meters-20-ml-sachet","title":"Quick Cal Solution Solution for GroLine pH and EC Meters - 20 mL Sachet","description":"\u003cp\u003eHI9814P is a quick calibration solution \u003cstrong\u003efor use with Hanna’s HI9814 GroPro portable pH\/EC\/TDS meter\u003c\/strong\u003e. This solution allows for the quick single point calibration for pH and conductivity. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration solutions have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. \u003c\/p\u003e\n\u003cp\u003epH and PPM\/EC meters should be calibrated frequently (every 1-4 weeks, depending on use). Do not reuse calibration solution, as once it has been used, it is no longer sterile and may result in improper readings. Pour a small amount into a shot glass and discard after use, or use Hanna's single use sachets for ease of use. Suitable for all makes and models of pH pens and meters.\u003c\/p\u003e\n\u003cp\u003eSingle-dose sachets are quick and easy to use. Each sealed, light tight sachets holds just the right amount of solution. Every time your instrument is calibrated using these HANNA sachets, it is using a newly-opened bottle of solution.\u003c\/p\u003e\n\u003cp\u003eSold individually or by the box of 25.\u003c\/p\u003e","brand":"Hanna Instruments, Inc.","offers":[{"title":"Each","offer_id":41930550607957,"sku":"8778","price":1.44,"currency_code":"USD","in_stock":true},{"title":"Case of 25","offer_id":42385988190293,"sku":"8778-CS25","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/quick-cal-solution-solution-for-groline-ph-and-ec-meters-20-ml-sachet-8778-1134082.png?v=1767475387"},{"product_id":"bluelab-nutrient-probe-care-kit-conductivity","title":"Bluelab Nutrient Probe Care Kit - Conductivity","description":"\u003cp\u003eThe instrument is only as accurate as the probe is clean. Probe cleaning is one of the most important parts of owning or operating any Bluelab® meter, monitor or controller. If the probe is contaminated or dirty, it affects the accuracy of the reading displayed. Conductivity kit contents: instructions, 500ml 2.77 EC solution, plastic cup, conductivity probe cleaner, chamois (probe cleaning instrument).\u003c\/p\u003e","brand":"Bluelab USA Corporation","offers":[{"title":"Default Title","offer_id":41930550804565,"sku":"5221","price":16.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/bluelab-nutrient-probe-care-kit-conductivity-5221-2151973.jpg?v=1767475385"},{"product_id":"bluelab-probe-care-kit-ph","title":"Bluelab Probe Care Kit - pH","description":"\u003cp\u003eEverything you need to clean, hydrate and calibrate pH probes. Probe cleaning and correctly storing pH probes ensures you get the most accurate readings possible and will maximize the life of a probe. The probe surface is where the instrument takes the reading of the solution or soil\/media. If the probe face is dirty or contaminated, the readings may be inaccurate. pH probes specifically, should be kept wet at all times for optimal performance and life.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3 align=\"center\"\u003eImportant information\u003c\/h3\u003e\n\u003ch3 align=\"center\"\u003efor Bluelab pH product customers\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp align=\"center\"\u003e \u003cem\u003e\"My pH probe has white crystals on it. Does this mean it's faulty?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp align=\"center\"\u003e \u003c\/p\u003e\n\u003cp align=\"center\"\u003eThe pH probe must be stored in KCl (potassium chloride) Storage Solution.\u003c\/p\u003e\n\u003cp align=\"center\"\u003eSalt crusting on the probe is normal. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOver time, KCl can evaporate and crystalize. Not every probe will have salt crusting, but if it does, your customers need to:\u003c\/b\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eSoak the pH probe in KCl Storage Solution for at least 24 hours. This will dissolve the salt crystals and rehydrate the probe.  \u003c\/li\u003e\n\u003cli\u003eRinse in fresh tap water, and soak the pH probe in pH 4.0 Calibration Solution for at least 10 minutes. \u003c\/li\u003e\n\u003cli\u003eCalibrate the probe to two points following the Getting Started guide, or visit our Knowledge Base article on \u003ca title=\"how to calibrate\" href=\"https:\/\/support.bluelab.com\/calibrate-bluelab-ph-pen\" target=\"_blank\" rel=\"noopener\"\u003ehow to calibrate\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eEnsure the sponge in the pH Pen storage cap contains KCl Storage Solution, or fill the pH Probe cap with enough KCl to cover the sensor.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp align=\"center\"\u003e \u003c\/p\u003e\n\u003cp align=\"center\"\u003e\u003cb\u003eRemember to clean, hydrate and calibrate! \u003c\/b\u003e\u003c\/p\u003e","brand":"Bluelab USA Corporation","offers":[{"title":"Default Title","offer_id":41930550902869,"sku":"9348","price":21.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/bluelab-probe-care-kit-ph-9348-6989253.jpg?v=1767475385"},{"product_id":"bluelab-probe-care-ph-conductivity","title":"Bluelab Probe Care pH \u0026 Conductivity","description":"\u003cp\u003eEverything you need to clean, hydrate and calibrate pH probes as well as clean and test conductivity (ppm\/EC) probes. The instrument is only as accurate as the probe is clean. Accurate readings simplify crop management and provide improved growth. Includes instructions, 2 0ml single-use Bluelab® Solution Sachets, 2 each of: pH 7.0 \u0026amp; pH 4.0, KCl, 2.77 EC, 3x plastic cups, pH Probe Cleaner, Conductivity Probe Cleaner, Toothbrush and Chamois.\u003c\/p\u003e","brand":"Bluelab USA Corporation","offers":[{"title":"Default Title","offer_id":41930550935637,"sku":"9347","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0610\/3426\/6709\/files\/bluelab-probe-care-ph-conductivity-9347-8483577.jpg?v=1767475385"},{"product_id":"quick-cal-solution-solution-for-groline-ph-and-ec-meters-230-ml","title":"Quick Cal Solution Solution for GroLine pH and EC Meters - 230 ml","description":"\u003cp\u003eHI9814P is a quick calibration solution \u003cstrong\u003efor use with Hanna’s HI9814 GroPro portable pH\/EC\/TDS meter\u003c\/strong\u003e. 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