{"product_id":"hanna-marine-calcium-handheld-colorimeter-1","title":"HANNA Marine Calcium Handheld Colorimeter","description":"\u003csection style=\"color: #212b36; font-family: -apple-system, system-ui, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 14px;\"\u003e\n\u003carticle\u003e\n\u003cdiv class=\"section-row\"\u003e\n\u003cdiv class=\"extended-description\" id=\"extended-description-tabs\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eIdeal for salt water aquariums and coral reef tanks\u003c\/h3\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eDesigned to measure calcium in reef tanks, the Hanna Calcium Checker is perfect for corals and marine life.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eEasy to use\u003c\/li\u003e\n\u003cli\u003eAccurate results every time\u003c\/li\u003e\n\u003cli\u003eExceptional price\u003c\/li\u003e\n\u003cli\u003eLarge LCD display\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eUses top quality technology to deliver high precision results.\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eThe HI-758 Calcium Checker is a simple, accurate and cost effective way to measure marine calcium in water.\u003c\/p\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eDesigned as a more accurate alternative to chemical test kits, the HI 758 provides quick, accurate results in four easy steps;\u003c\/p\u003e\n\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eAdd 1ml of reagent A and add 9ml of deionised water to cuvette.\u003c\/li\u003e\n\u003cli\u003eInsert cuvette into the Checker and zero it out.\u003c\/li\u003e\n\u003cli\u003eRemove cuvette and add 0.1ml sample to be tested and 1 packet of reagent B\u003c\/li\u003e\n\u003cli\u003eReinsert sample and click the button to measure your results or press and hold the button for 3 seconds for a time reaction reading.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eThe contoured style of the HI-758 Calcium Checker is designed to fit in the palm of your hand. The large LCD is easy to read and the auto shut-off feature ensures the battery life will not be drained if you forget to turn it off.\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eIdeal for:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSalt water aquariums and coral reef tanks\u003c\/li\u003e\n\u003cli\u003eWater Quality\u003c\/li\u003e\n\u003cli\u003eEnvironmental\u003c\/li\u003e\n\u003cli\u003eEducation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section four\"\u003e\n\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eMain Benefits:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTesting is quick and easy\u003c\/li\u003e\n\u003cli\u003eHigh precision results - more accurate than chemical test kits\u003c\/li\u003e\n\u003cli\u003eAuto shut-off feature means the Checker cannot be left on by mistake\u003c\/li\u003e\n\u003cli\u003eFully portable, fitting easily into both palm and pocket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-12 col-sm-5 rem-p-r\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/758alt3_v2.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section five\"\u003e\n\u003cdiv class=\"section-image col-xs-12 col-sm-5 rem-p-l\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/758alt2_v2.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text hidden-xs col-sm-7 add-p-l rem-p-r\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eSupplied with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2 sample cuvettes\u003c\/li\u003e\n\u003cli\u003eCuvette cap\u003c\/li\u003e\n\u003cli\u003eStarter pack of reagents x 25 (re-ordering information: HI-758-26)\u003c\/li\u003e\n\u003cli\u003e1 x 1.5 AAA battery\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eCalibration set also available HI-758-11, and pipette tips HI-731349.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section nine\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-l\"\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/CheckerReagent_1_5.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eFour steps. One click. Instant Readout.\u003c\/h3\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e1. ‘Zero’ the Checker®HC with your vial \u0026amp; 10ml water sample inside\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/CheckerReagent_2_5.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e2. Take the vial out and add your reagent\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-r\"\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/CheckerReagent_3_5.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e3. Place your vial into your Checker®HC\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/CheckerReagent_4_5.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e4. Press the button and read the results\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section ten\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 rem-pad-mobile rem-p-l\"\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/battery_roundel_314.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/blank_81.png\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-12\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eBattery powered – Allows use away from a power source. Batteries are included with all battery operated products.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 rem-pad-mobile\"\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/758-26default.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/blank_82.png\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-12 text-left\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eUse HI-758-26 Reagents for HI-758 Marine Calcium Handheld Colorimeter - Checker®HC, x 25 tests.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 rem-pad-mobile rem-p-r\"\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/758-11.jpg\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-image col-xs-6\"\u003e\u003cimg title=\"\" alt=\"\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/blank_83.png\" class=\"img-responsive\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-12\"\u003e\n\u003cbr\u003e\u003cbr\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eUse HI-758-11 Calibration Check Set for HI-758 Marine Calcium Handheld Colorimeter - Checker®HC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section\"\u003e\n\u003cdiv class=\"col-xs-12 video  rem-p-l rem-p-r\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/OG1cliQjDZk\" height=\"360\" width=\"640\" data-sanitized-allowfullscreen=\"\" data-sanitized-allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" data-sanitized-frameborder=\"0\"\u003e\u003c\/iframe\u003e\n\u003cp style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003e\u003ca href=\"https:\/\/vimeo.com\/105122989\" data-sanitized-target=\"_blank\"\u003eHI-758\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/article\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"specification col-xs-12\" id=\"specifications\" style=\"color: #212b36; font-family: -apple-system, system-ui, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif; font-size: 14px;\"\u003e\n\u003carticle\u003e\n\u003ch2 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eSpecifications\u003c\/h2\u003e\n\u003csection\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eSpecifications list\u003c\/h3\u003e\n\u003cdiv class=\"table\"\u003e\n\u003cdiv class=\"section-row section spec\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003ch3 style=\"margin: 0px 0px 1em; line-height: 1.4;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 550.694px; border-color: #cccccc;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e200 to 600 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eAccuracy @ 25°C\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e±6% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eLight Source\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003elight emitting diode @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eLight Detector\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eSilicon Photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eEnvironment\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e0 to 50 °C (32 to 122 °F); max 95% RH non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e(1) 1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eAuto-off\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eafter 10 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e64 g (2.25 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eMethod\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"border-color: #cccccc;\"\u003eadaptation of the zincon method\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/article\u003e\n\u003c\/div\u003e","brand":"HANNA","offers":[{"title":"Default Title","offer_id":39611266433110,"sku":"11132","price":69.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1756\/4259\/products\/Hanna-marine-calcium.jpg?v=1636456883","url":"https:\/\/www.elitekoi.co.uk\/products\/hanna-marine-calcium-handheld-colorimeter-1","provider":"Elite Koi","version":"1.0","type":"link"}