{"product_id":"portable-polarographic-dissolved-oxygen-meter-copy","title":"Portable Galvanic Dissolved Oxygen Meter","description":"\u003cp\u003eThe meter is a rugged, water-resistant dissolved oxygen (DO) meter designed to provide precision and accuracy under harsh environmental conditions. The meter features a manual one point calibration, automatic temperature compensation, and salinity and altitude compensation. The meter is supplied with a galvanic, HDPE membrane caps, electrolyte fill solution, a protective shield, and sturdy carrying case.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasily Replaceable Membrane Caps\u003c\/li\u003e\n\u003cli\u003eManual Calibration\u003c\/li\u003e\n\u003cli\u003eGalvanic Measuring System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eGalvanic Measuring System\u003c\/strong\u003e\u003cspan\u003e - The meter and probe use galvanic sensor technology where the electrodes' potential difference drives the reaction, requiring no external voltage. The probe is comprised of a silver cathode and zinc anode in an electrolyte solution held in place over the surface of the electrodes by a polymer membrane. Oxygen diffuses across the membrane and the system establishes a current proportional to the concentration of dissolved oxygen present.\u003c\/span\u003e\u003c\/p\u003e","brand":"Aquatic Equipment \u0026 Design Inc.","offers":[{"title":"HI9147-04: Portable Galvanic DO Meter w\/ 4 meter cable","offer_id":56203021779110,"sku":null,"price":690.0,"currency_code":"USD","in_stock":true},{"title":"HI76409: Replacement Galvanic DO Probe w\/ 4 meter cable","offer_id":56203021811878,"sku":null,"price":290.0,"currency_code":"USD","in_stock":true},{"title":"HI76409A\/P: Replacement DO Screw Cap Membranes For Galvanic Sensors","offer_id":56203021844646,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true},{"title":"HI7042S: Galvanic Dissolved Oxygen Electrolyte Solution (30 mL)","offer_id":56203021877414,"sku":null,"price":28.0,"currency_code":"USD","in_stock":true},{"title":"HI7040L: Zero Oxygen Solution Set (500 mL)","offer_id":56203021910182,"sku":null,"price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6344\/0294\/files\/galvanicDOmeter_841a833d-a6ef-4a87-997f-aa223dc722f4.png?v=1771363076","url":"https:\/\/gridfreesupply.com\/products\/portable-polarographic-dissolved-oxygen-meter-copy","provider":"Grid Free Supply","version":"1.0","type":"link"}