{"title":"Calibration Fluids","description":"","products":[{"product_id":"essentials-lab-ec-meter-cal-soln-250ml","title":"Essentials LAB EC Meter Cal. Soln. 250ml","description":"\u003cp\u003eEssentials LAB EC Meter Calibration Solution is intended for use in calibrating EC meters to CF 28 – EC 2.80 – PPM 1820. Regular calibration will keep your EC Meter reading accurately.  \u003cbr\u003eKey selling points:  \u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHighly accurate calibration solution  \u003c\/li\u003e\n\u003cli\u003eEnsures that your EC Meter is reading correctly \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eTechnical Specifications:   \u003cbr\u003e\u003cul\u003e\n\u003cli\u003ePotassium Chloride solution   \u003c\/li\u003e\n\u003cli\u003eElectrical Conductivity: 2.8ms\/cm @20°C \u003c\/li\u003e\n\u003cli\u003ePH 4 - 5 \u003c\/li\u003e\n\u003cli\u003eVolume: 250ml \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eFAQs:  \u003cbr\u003eQ: When should I calibrate my EC meter, and why do I need to do it? \u003cbr\u003eA: The performance of an EC meter will change with time due to aging. To ensure it is working correctly, regular calibration is a must. If you are using your EC meter daily, you should calibrate it at least once a week. \u003cbr\u003eQ: How should I use Essentials LAB EC Meter Calibration Solution to calibrate my pH meter? \u003cbr\u003eA: Ensure that your EC meter and the calibration solution are at similar temperatures, by keeping them in the same place for a while. Shake the bottle before use. Always pour a small amount into another container to test EC, and do not place your EC probe directly into the bottle. This will avoid contamination of the calibration solution in the bottle and will maintain its accuracy. After use, discard the solution used for calibration, and never put it back into the bottle. Follow the calibration instructions provided with your EC Meter.  \u003cbr\u003eQ: How should I store LAB EC Meter Calibration Solution? \u003cbr\u003eA: Always keep the bottle upright with the cap screwed tight to avoid evaporation or spillage. Store your calibration solution at temperatures between 5°C and 25°C, and out of direct sunlight. \u003cbr\u003e \u003cbr\u003ePurchase this with…  \u003cbr\u003e09-415-022 - Essentials EC Meter - With Memory Function \u003cbr\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420904808791,"sku":"09-430-005","price":2.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-005.png?v=1777303452"},{"product_id":"essentials-lab-buffer-4-250ml","title":"Essentials LAB Buffer 4 250ml","description":"\u003cp\u003eEssentials LAB Buffer 4 is an ideal solution for calibration of pH meters at pH4. Regular calibration will keep your pH meter reading accurately.  \u003cbr\u003eKey selling points:  \u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHighly accurate pH4 solution \u003c\/li\u003e\n\u003cli\u003eEnsures that your pH meter is reading correctly \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eTechnical Specifications:   \u003cbr\u003e\u003cul\u003e\n\u003cli\u003eAcidity level: pH4 \u003c\/li\u003e\n\u003cli\u003eVolume: 250ml \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eFAQs:  \u003cbr\u003eQ: When should I calibrate my pH meter, and why do I need to do it? \u003cbr\u003eA: The performance of a pH electrode or pH meter will change with time due to aging because as the electrode is used its coating degrades, to ensure it is working correctly, regular calibration is a must. If you are using your pH meter daily, you should calibrate it at least once a week. \u003cbr\u003eQ: How should I use Essentials LAB Buffer 4 to calibrate my pH meter? \u003cbr\u003eA: Ensure that your pH meter and the Buffer 4 solution are at similar temperatures, by keeping them in the same place for a while. Shake the bottle before use. Always pour a small amount into another container to test pH, and do not place your pH probe directly into the bottle. This will avoid contamination of the Buffer 4 in the bottle and will maintain its accuracy. After use, discard the solution used for calibration, and never put it back into the bottle. Follow the calibration instructions provided with your pH Meter. For more accurate, 2-point calibration, also use Essentials LAB Buffer 7. \u003cbr\u003eQ: How should I store Essentials LAB Buffer 4? \u003cbr\u003eA: Always keep the bottle upright with the cap screwed tight to avoid evaporation or spillage. Store your Buffer 4 at temperatures between 5°C and 25°C, and out of direct sunlight. \u003cbr\u003e \u003cbr\u003ePurchase this with…  \u003cbr\u003e09-430-025 – Essentials LAB Buffer 7 250ml \u003cbr\u003e09-410-022 - Essentials pH Meter - With Memory Function \u003cbr\u003e09-430-100 - Essentials LAB pH Meter Store \u003cbr\u003e \u003cbr\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420905136471,"sku":"09-430-015","price":2.8,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-015_1.png?v=1777303460"},{"product_id":"essentials-lab-buffer-4-1l","title":"Essentials LAB Buffer 4 1L","description":"\u003cp\u003eEssentials LAB Buffer 4 is an ideal solution for calibration of pH meters at pH4. Regular calibration will keep your pH meter reading accurately.  \u003cbr\u003eKey selling points:  \u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHighly accurate pH4 solution \u003c\/li\u003e\n\u003cli\u003eEnsures that your pH meter is reading correctly \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eTechnical Specifications:   \u003cbr\u003e\u003cul\u003e\n\u003cli\u003eAcidity level: pH4 \u003c\/li\u003e\n\u003cli\u003eVolume: 1L \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eFAQs:  \u003cbr\u003eQ: When should I calibrate my pH meter, and why do I need to do it? \u003cbr\u003eA: The performance of a pH electrode or pH meter will change with time due to aging because as the electrode is used its coating degrades, to ensure it is working correctly, regular calibration is a must. If you are using your pH meter daily, you should calibrate it at least once a week. \u003cbr\u003eQ: How should I use Essentials LAB Buffer 4 to calibrate my pH meter? \u003cbr\u003eA: Ensure that your pH meter and the Buffer 4 solution are at similar temperatures, by keeping them in the same place for a while. Shake the bottle before use. Always pour a small amount into another container to test pH, and do not place your pH probe directly into the bottle. This will avoid contamination of the Buffer 4 in the bottle and will maintain its accuracy. After use, discard the solution used for calibration, and never put it back into the bottle. Follow the calibration instructions provided with your pH Meter. For more accurate, 2-point calibration, also use Essentials LAB Buffer 7. \u003cbr\u003eQ: How should I store Essentials LAB Buffer 4? \u003cbr\u003eA: Always keep the bottle upright with the cap screwed tight to avoid evaporation or spillage. Store your Buffer 4 at temperatures between 5°C and 25°C, and out of direct sunlight. \u003cbr\u003e \u003cbr\u003ePurchase this with…  \u003cbr\u003e09-430-030 – Essentials LAB Buffer 7 1L \u003cbr\u003e09-410-022 - Essentials pH Meter - With Memory Function \u003cbr\u003e09-430-100 - Essentials LAB pH Meter Store \u003cbr\u003e \u003cbr\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420905529687,"sku":"09-430-020","price":5.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-020_1.png?v=1777303468"},{"product_id":"essentials-lab-buffer-7-250ml","title":"Essentials LAB Buffer 7 250ml","description":"\u003cp\u003eEssentials LAB Buffer 7 is an ideal solution for calibration of pH meters at pH7. Regular calibration will keep your pH meter reading accurately.  \u003cbr\u003eKey selling points:  \u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHighly accurate pH7 solution \u003c\/li\u003e\n\u003cli\u003eEnsures that your pH meter is reading correctly \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eTechnical Specifications:   \u003cbr\u003e\u003cul\u003e\n\u003cli\u003eAcidity level: pH7 (Neutral) \u003c\/li\u003e\n\u003cli\u003eVolume: 250ml \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eFAQs:  \u003cbr\u003eQ: When should I calibrate my pH meter, and why do I need to do it? \u003cbr\u003eA: The performance of a pH electrode or pH meter will change with time due to aging because as the electrode is used its coating degrades, to ensure it is working correctly, regular calibration is a must. If you are using your pH meter daily, you should calibrate it at least once a week. \u003cbr\u003eQ: How should I use Essentials LAB Buffer 7 to calibrate my pH meter? \u003cbr\u003eA: Ensure that your pH meter and the Buffer 7 solution are at similar temperatures, by keeping them in the same place for a while. Shake the bottle before use. Always pour a small amount into another container to test pH, and do not place your pH probe directly into the bottle. This will avoid contamination of the Buffer 7 in the bottle and will maintain its accuracy. After use, discard the solution used for calibration, and never put it back into the bottle. Follow the calibration instructions provided with your pH Meter. For more accurate, 2-point calibration, also use Essentials LAB Buffer 4. \u003cbr\u003eQ: How should I store Essentials LAB Buffer 7? \u003cbr\u003eA: Always keep the bottle upright with the cap screwed tight to avoid evaporation or spillage. Store your Buffer 7 at temperatures between 5°C and 25°C, and out of direct sunlight. \u003cbr\u003e \u003cbr\u003ePurchase this with…  \u003cbr\u003e09-430-015 – Essentials LAB Buffer 4 250ml \u003cbr\u003e09-410-022 - Essentials pH Meter - With Memory Function \u003cbr\u003e09-430-100 - Essentials LAB pH Meter Store \u003cbr\u003e \u003cbr\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420905890135,"sku":"09-430-025","price":2.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-025_1.png?v=1777303476"},{"product_id":"essentials-lab-buffer-7-1l","title":"Essentials LAB Buffer 7 1L","description":"\u003cp\u003eEssentials LAB Buffer 7 is an ideal solution for calibration of pH meters at pH7. Regular calibration will keep your pH meter reading accurately.  \u003cbr\u003eKey selling points:  \u003cbr\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHighly accurate pH7 solution \u003c\/li\u003e\n\u003cli\u003eEnsures that your pH meter is reading correctly \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eTechnical Specifications:   \u003cbr\u003e\u003cul\u003e\n\u003cli\u003eAcidity level: pH7 (Neutral) \u003c\/li\u003e\n\u003cli\u003eVolume: 1L \u003c\/li\u003e\n\u003c\/ul\u003e \u003cbr\u003eFAQs:  \u003cbr\u003eQ: When should I calibrate my pH meter, and why do I need to do it? \u003cbr\u003eA: The performance of a pH electrode or pH meter will change with time due to aging because as the electrode is used its coating degrades, to ensure it is working correctly, regular calibration is a must. If you are using your pH meter daily, you should calibrate it at least once a week. \u003cbr\u003eQ: How should I use Essentials LAB Buffer 7 to calibrate my pH meter? \u003cbr\u003eA: Ensure that your pH meter and the Buffer 7 solution are at similar temperatures, by keeping them in the same place for a while. Shake the bottle before use. Always pour a small amount into another container to test pH, and do not place your pH probe directly into the bottle. This will avoid contamination of the Buffer 7 in the bottle and will maintain its accuracy. After use, discard the solution used for calibration, and never put it back into the bottle. Follow the calibration instructions provided with your pH Meter. For more accurate, 2-point calibration, also use Essentials LAB Buffer 4. \u003cbr\u003eQ: How should I store Essentials LAB Buffer 7? \u003cbr\u003eA: Always keep the bottle upright with the cap screwed tight to avoid evaporation or spillage. Store your Buffer 7 at temperatures between 5°C and 25°C, and out of direct sunlight. \u003cbr\u003e \u003cbr\u003ePurchase this with…  \u003cbr\u003e09-430-020 – Essentials LAB Buffer 4 1L \u003cbr\u003e09-410-022 - Essentials pH Meter - With Memory Function \u003cbr\u003e09-430-100 - Essentials LAB pH Meter Store \u003cbr\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420906283351,"sku":"09-430-030","price":4.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-030_1.png?v=1777303484"},{"product_id":"vitalink-buffer-7-1l-en-fr","title":"VitaLink Buffer 7 1L - EN\/FR","description":"\u003cp\u003eThe pH of your nutrient solution greatly affects the availability of nutrients within that solution. pH which is too high or too low can cause deficiencies in essential nutrients that plants need to grow. It can also negatively affect beneficial bacteria in your system or substrate.\u003cbr\u003eThe performance of a pH electrode or pH meter will change with time due to aging because as the electrode is used its coating degrades, to ensure it is working correctly, regular calibration is a must. If you are using your pH meter daily, you should calibrate it at least once a week.\u003cbr\u003eTo calibrate, use either VitaLink ESSENTIALS Buffer 4 or VitaLink ESSENTIALS Buffer 7. Using both of these buffer solutions will make your calibration more accurate.\u003cbr\u003eThe temperature of your solution will also affect the pH value. ESSENTIALS pH Meter has automatic temperature compensation. When calibrating, it is necessary that your pH meter and your calibration fluid have the same temperature. To achieve this, place them in the same room several hours prior to performing calibration.\u003cbr\u003eAvailable in 250ml and 1L bottles.\u003c\/p\u003e","brand":"ESSENTIALS","offers":[{"title":"Default Title","offer_id":53420906905943,"sku":"09-430-250","price":3.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1003\/2558\/9335\/files\/09-430-250_09-430-250_1.jpg?v=1777303501"},{"product_id":"bluelab-ph-4-0-calibration-solution-250ml-box-of-6","title":"Bluelab pH 4.0 Calibration Solution 250ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420936134999,"sku":"09-445-930","price":45.9,"currency_code":"GBP","in_stock":true}]},{"product_id":"bluelab-ph-4-0-calibration-solution-500ml-box-of-6","title":"Bluelab pH 4.0 Calibration Solution 500ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420936429911,"sku":"09-445-935","price":56.6,"currency_code":"GBP","in_stock":true}]},{"product_id":"bluelab-ph-7-0-calibration-solution-250ml-box-of-6","title":"Bluelab pH 7.0 Calibration Solution 250ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420937707863,"sku":"09-445-950","price":45.9,"currency_code":"GBP","in_stock":true}]},{"product_id":"bluelab-ph-7-0-calibration-solution-500ml-box-of-6","title":"Bluelab pH 7.0 Calibration Solution 500ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420937904471,"sku":"09-445-955","price":56.6,"currency_code":"GBP","in_stock":true}]},{"product_id":"bluelab-2-77-ec-standard-solution-250ml-box-of-6","title":"Bluelab 2.77 EC Standard Solution 250ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420938002775,"sku":"09-445-970","price":45.9,"currency_code":"GBP","in_stock":false}]},{"product_id":"bluelab-2-77-ec-standard-solution-500ml-box-of-6","title":"Bluelab 2.77 EC Standard Solution 500ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420938199383,"sku":"09-445-975","price":56.6,"currency_code":"GBP","in_stock":true}]},{"product_id":"bluelab-ph-probe-storage-solution-100ml-box-of-6","title":"Bluelab pH Probe Storage Solution 100ml Box of 6","description":"","brand":"BLUELAB","offers":[{"title":"Default Title","offer_id":53420938363223,"sku":"09-445-990","price":56.6,"currency_code":"GBP","in_stock":true}]}],"url":"https:\/\/hydrohub.org.uk\/collections\/nutrient-control-calibration-fluids.oembed","provider":"Hydro Hub","version":"1.0","type":"link"}