{"product_id":"milwaukee-ma9020-orp-calibration-solution-200-275mv-230ml","title":"Milwaukee MA9020 ORP Calibration Solution 200-275 mV | 230 mL for Platinum \u0026 Gold Electrodes","description":"\u003ch2\u003eMilwaukee MA9020 ORP Calibration Solution – 200-275 mV | 230 mL\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eMilwaukee MA9020\u003c\/strong\u003e is a lab-grade ORP validation solution certified to the 200–275 mV range. Designed for use with platinum and gold ORP electrodes, it ensures your meter delivers accurate, repeatable oxidation-reduction potential readings every time.\u003c\/p\u003e\n\u003cp\u003eWhether you're managing water quality in aquaculture, hydroponics, laboratories, or industrial applications, the MA9020 gives you the confidence that your ORP electrode is performing within spec.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified ORP range:\u003c\/strong\u003e 200–275 mV @ 25°C — meets lab-grade accuracy standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230 mL volume\u003c\/strong\u003e — ample supply for repeated electrode validation checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTamper-proof, light-sealed cap\u003c\/strong\u003e — preserves solution integrity between uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast accuracy check\u003c\/strong\u003e — pour into a beaker, insert electrode, and verify in seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with platinum and gold ORP electrodes\u003c\/strong\u003e — ideal for Milwaukee Instruments probes and meters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFundamental for reproducible readings\u003c\/strong\u003e — eliminates guesswork in ORP measurement workflows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e MA9020\u003cbr\u003e\n\u003cstrong\u003eORP Value:\u003c\/strong\u003e 200–275 mV @ 25°C\u003cbr\u003e\n\u003cstrong\u003eAccuracy:\u003c\/strong\u003e Standard ±75 mV\u003cbr\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 230 mL\u003cbr\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Bottle\u003cbr\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Light-sealed, tamper-proof bottle\u003cbr\u003e\n\u003cstrong\u003eCertificate of Analysis:\u003c\/strong\u003e Not included\u003cbr\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Romania\u003cbr\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 810666009657\u003c\/p\u003e","brand":"MILWAUKEE INSTRUMENTS","offers":[{"title":"Default Title","offer_id":40280745312343,"sku":"MA9020","price":26.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1555\/0581\/files\/MA9020.jpg?v=1737138333","url":"https:\/\/getultimatenow.com\/products\/milwaukee-ma9020-orp-calibration-solution-200-275mv-230ml","provider":"Get Ultimate Now ","version":"1.0","type":"link"}