{"product_id":"hanna-checker-marine-alkalinity-dkh-hi772","title":"Hanna Checker Marine Alkalinity dKH HI772","description":"\u003cp\u003e\u003c\/p\u003e\u003cdiv\u003e\r\n\tThe Hanna Marine Alkalinity (dKH) Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. This level of instrumentation also offers greater resolution and accuracy, but can cost hundreds of dollars. The Hanna Marine Alkalinity Checker uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tCompact, Portable Design\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tBuilt-in Timer\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tOne Button Operation\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Critical to marine environments, alkalinity not only provides the carbonate ion required for calcium carbonate skeletal regeneration of coral reefs, but it also acts as a pH buffer against large changes in acidity. Designed as a more accurate alternative to chemical test kits, the HI772 provides quick, accurate results in four easy steps:\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eFeatures at-a-glance:\u003c\/strong\u003e\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tEasier to use and more accurate than chemical test kits\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tDedicated to a single parameter\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tSmall size, big convenience\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tIdeal for: Aquaculture \u0026amp; Aquariums, Water Quality\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cimg alt=\"\" src=\"\/web_files\/pa.pavintheway.com\/images\/alkdkh.jpg\" style=\"width: 800px; height: 597px;\"\u003e\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t \u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\t\u003cstrong\u003eSpecifications\u003c\/strong\u003e\n\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tRange\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e0.0 to 20.0 dKH\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tResolution\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e0.1 dKH\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tAccuracy @ 25°C\/77°F\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e±0.3 dKH ±5% of reading\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tLight Source\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003eLED @ 610 nm\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tLight Detector\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003esilicon photocell\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tMethod\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003ecolorimetric method\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tEnvironment\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tBattery Type\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e(1) 1.5V AAA\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tAuto-off\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003eafter ten minutes of non-use\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tDimensions\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e86.0 mm x 61.0 mm x 37.5 mm (3.4\" x 2.4\" x 1.5\")\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tWeight\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003e64 g (2.25 oz.)\u003c\/div\u003e\r\n\u003cdiv\u003e\r\n\tOrdering Information\u003cspan class=\"Apple-tab-span\" style=\"white-space:pre\"\u003e \u003c\/span\u003eHI772 Checker® is supplied with (2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent, 1 ml syringe and tip), ­­­ battery, instructions, and quick start guide.\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":41721837191214,"sku":"HI-772","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/4276\/8686\/files\/11235.jpg?v=1765980873","url":"https:\/\/mattscorals.com\/products\/hanna-checker-marine-alkalinity-dkh-hi772","provider":"Matt's Corals","version":"1.0","type":"link"}