{"product_id":"general-hydroponics-1500-ppm-calibration-solution","title":"General Hydroponics 1500 PPM TDS Calibration Solution","description":"\u003cp\u003eMaintain reliable nutrient readings with \u003cstrong\u003eGeneral Hydroponics 1500 PPM TDS Calibration Solution\u003c\/strong\u003e. This precisely prepared reference solution is designed for calibrating compatible TDS and conductivity meters used to monitor hydroponic reservoirs, fertilizer solutions, source water, and irrigation systems.\u003c\/p\u003e\n\n\u003cp\u003eRegular calibration helps growers identify inaccurate or drifting meter readings before they lead to incorrect nutrient concentrations. The 1500 ppm reference point is particularly useful for meters that measure within the concentration range commonly encountered in hydroponic nutrient solutions.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Calibrate Your TDS or EC Meter?\u003c\/h2\u003e\n\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eImproves Measurement Accuracy:\u003c\/strong\u003e Provides a known reference value for adjusting compatible digital meters.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eSupports Consistent Feeding:\u003c\/strong\u003e Helps prevent nutrient solutions from becoming weaker or stronger than intended.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eDetects Meter Drift:\u003c\/strong\u003e Regular calibration identifies readings that have gradually shifted over time.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUseful Across Growing Systems:\u003c\/strong\u003e Suitable for meters used with hydroponics, coco coir, fertigation, reservoirs, and soil feeding solutions.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eConvenient Liquid Standard:\u003c\/strong\u003e Ready to use without mixing powders or calculating concentrations.\u003c\/li\u003e \u003c\/ul\u003e\n\n\u003ch2\u003eMeter Compatibility\u003c\/h2\u003e\n\n\u003cp\u003eThis solution provides a \u003cstrong\u003e1500 ppm calibration reference\u003c\/strong\u003e. Before use, confirm that your meter’s instructions specify a 1500 ppm standard and identify the required TDS conversion scale.\u003c\/p\u003e\n\n\u003cp\u003ePPM meters may use different conversion factors, commonly identified as the NaCl\/500 scale or the 442\/700 scale. These scales are not automatically interchangeable. Always follow the calibration value and procedure supplied by your meter manufacturer.\u003c\/p\u003e\n\n\u003ch2\u003eHow to Calibrate Your Meter\u003c\/h2\u003e\n\n\u003col\u003e \u003cli\u003eRinse the meter probe with distilled or deionized water.\u003c\/li\u003e \u003cli\u003ePour a small amount of fresh calibration solution into a separate clean container.\u003c\/li\u003e \u003cli\u003ePlace the probe into the solution without allowing it to touch the bottom or sides of the container.\u003c\/li\u003e \u003cli\u003eAllow the reading to stabilize.\u003c\/li\u003e \u003cli\u003eFollow your meter’s calibration procedure and adjust it to the specified 1500 ppm reference value.\u003c\/li\u003e \u003cli\u003eRemove the probe, rinse it with distilled or deionized water, and gently blot away excess moisture.\u003c\/li\u003e \u003cli\u003eDiscard the used calibration solution after testing.\u003c\/li\u003e \u003c\/ol\u003e\n\n\u003ch2\u003eCalibration and Storage Tips\u003c\/h2\u003e\n\n\u003cul\u003e \u003cli\u003eNever return used calibration solution to the original bottle.\u003c\/li\u003e \u003cli\u003eDo not place the meter probe directly into the stock bottle, as this may contaminate the remaining solution.\u003c\/li\u003e \u003cli\u003eUse a fresh portion of solution for each calibration session.\u003c\/li\u003e \u003cli\u003eAllow the meter and calibration solution to reach a stable, similar temperature before calibrating.\u003c\/li\u003e \u003cli\u003eKeep the bottle tightly sealed when not in use.\u003c\/li\u003e \u003cli\u003eStore in a cool, dry location away from direct sunlight, extreme temperatures, and contaminants.\u003c\/li\u003e \u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This product is intended for compatible TDS and conductivity meters. It is not a calibration solution for pH meters.\u003c\/p\u003e","brand":"General Hydroponics","offers":[{"title":"qt","offer_id":51433648488612,"sku":"722010","price":19.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1298\/4199\/products\/General-Hydroponics_-TDS-Calibration-Solution_-1500-ppm_-qt-General-Hydroponics-1673948182.jpg?v=1683702922","url":"https:\/\/www.gardensupplyguys.com\/products\/general-hydroponics-1500-ppm-calibration-solution","provider":"GARDEN SUPPLY GUYS","version":"1.0","type":"link"}