{"product_id":"hanna-waterproof-orpphtemperature-tester","title":"HANNA WATERPROOF ORP\/PH\/TEMPERATURE TESTER","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThese are special order items.  Please allow up to 2 weeks for shipping.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eAbout This Item\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWaterproof\u003c\/li\u003e\n\u003cli\u003eAutomatic Temperature Compensation\u003c\/li\u003e\n\u003cli\u003eHOLD feature\u003c\/li\u003e\n\u003cli\u003eSimple to use\u003c\/li\u003e\n\u003cli\u003eEconomical\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe HI98121 is a lightweight ergonomically designed tester. This tester is designed to float making it ideal for taking ORP measurements virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBy definition, pH is the measurement of the voltage generated by an electrochemical cell at zero current. The potential generated is proportional to the thermodynamic activity of the ion being measured.\u003c\/p\u003e\n\u003cp\u003eSimilar to a pH measurement that quantifies how acidic or alkaline solutions are, ORP (Oxidation Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. Oxidizing and reducing reagents are used to participate in chemical reactions known as redox reactions.\u003c\/p\u003e\n\u003cp\u003eAn ORP meter must be chemically inert; it cannot be oxidized or reduced itself. It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.\u003c\/p\u003e\n\u003cp\u003eProduct Manual\u003c\/p\u003e\n\u003ch1\u003e\u003c\/h1\u003e","brand":"TAS","offers":[{"title":"Default Title","offer_id":46785055948879,"sku":"akm1789526118017","price":155.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0711\/7969\/8255\/files\/hanna-waterproof-orpphtemperature-tester_1.jpg?v=1789526121","url":"https:\/\/modernvintageboutique.shop\/products\/hanna-waterproof-orpphtemperature-tester","provider":"My Store","version":"1.0","type":"link"}