{"product_id":"magnesium-hardness-checker-hc-hi719","title":"Hanna - Marine Magnesium Checker HC Handheld Colorimeter - HI783","description":"\u003cdiv class=\"product-info-main\"\u003e\n\u003cdiv class=\"product attribute overview\"\u003e\n\u003cdiv class=\"value\" itemprop=\"description\"\u003e\n\u003cp\u003e\u003cstrong\u003eShort Dated\u003c\/strong\u003e 1 year until expiry**\u003c\/p\u003e\n\u003cp\u003eThe HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of magnesium colorimetrically. The HI783 is designed specifically to measure magnesium levels in a saltwater aquarium or in marine biology applications. The 1000 to 1800 ppm range is ideal for coral\/fish or fish-only aquarium maintenance.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for aquariums and marine biology\u003c\/li\u003e\n\u003cli\u003eEasier to use and more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eSmall size, big convenience\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMagnesium is the third most abundant ion in seawater, surpassed only by sodium and chloride. Its abundance is critical in the formation of weak ion pairs with carbonate ions. This allows calcium and carbonate ions to be available for uptake by corals and invertebrates. Low levels of magnesium lead to low or unstable levels of calcium and alkalinity. Signs of low magnesium levels include precipitation of calcium as insoluble calcium carbonate and impaired inhabitant growth and health.\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch4\u003ePrimary Applications:\u003c\/h4\u003e\n\u003cp\u003eMarine, Saltwater Aquariums, Aquaculture\u003c\/p\u003e\n\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specs-table\"\u003e\n\u003ccaption class=\"table-caption\"\u003eMore Information\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eSKU\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"SKU\"\u003eHI783\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eProduct Name\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Product Name\"\u003eMarine Magnesium Checker HC Handheld Colorimeter - HI783\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eQuote Required\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Quote Required\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eRange\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Range\"\u003e1000 to 1800 ppm Magnesium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eResolution\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Resolution\"\u003e5 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eAccuracy\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Accuracy\"\u003e±5% of reading @ 25 °C (77 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eLight source\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Light source\"\u003eLight Emitting Diode @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eLight detector\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Light detector\"\u003eSilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eMethod\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Method\"\u003eAdaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eEnvironment\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Environment\"\u003e0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing Prepared sample cuvette (sample plus reagents) must be 18 to 28 °C (64 to 82 °F).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eBattery type\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Battery type\"\u003e1.5V AAA Alkaline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eAuto shut-off\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Auto shut-off\"\u003eAfter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Dimensions\"\u003e86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eWeight\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Weight\"\u003e64 g (2.3 oz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eInterferences\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Interferences\"\u003eCalcium below 300 ppm and above 500 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label\" scope=\"row\"\u003eOrdering Information\u003c\/th\u003e\n\u003ctd class=\"col data\" data-th=\"Ordering Information\"\u003e\n\u003cp\u003eHI783 Checker HC is supplied with sample cuvette and cap (2 pcs.), Marine Magnesium reagent starter kit (reagents for 25 tests), 1 mL graduated syringe and tip (1 pc.), 5 mL syringe and tip with black printing (1 pc.), 5 mL syringe and tip with blue printing (1 pc.), 1.5V AAA Alkaline battery (1 pc.), instruction manual, and quick-reference guide.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"value\" itemprop=\"description\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"HANNA","offers":[{"title":"Default Title","offer_id":44044313034840,"sku":"HI783","price":120.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/8557\/1672\/files\/magnesiumhanna.jpg?v=1779082366","url":"https:\/\/bespokeaquariums.com.au\/products\/magnesium-hardness-checker-hc-hi719","provider":"Bespoke Aquariums","version":"1.0","type":"link"}