{"product_id":"pool-line-alkalinity-checker-hc-hi7754","title":"Pool Line Alkalinity Checker HC - HI7754","description":"\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 24px 48px; margin: 0 0 48px;\"\u003e\n\u003cdiv style=\"flex: 1 1 260px; max-width: 440px; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/checker1234.jpg\" alt=\"How to use Hanna Checker Handheld Colorimeter\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: 0 auto;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 340px; min-width: 0;\"\u003e\n\u003cp\u003eHI7754 Pool Line Checker® Handheld Colorimeter is designed for the measurement of alkalinity in swimming pools, hot tubs, and spas. Alkalinity is a very important parameter in monitoring swimming pool water chemistry. Alkalinity is the buffering capacity of a solution to resist a pH change from the addition of an acid or base. This can be a challenge when using common forms of chlorine, in that, as a base when the chlorine is added the pH will increase. As the pH of the water increased above pH 7.4 the chlorine becomes predominately in the hypochlorite form instead of the hypochlorous acid as the pH decreases from pH 7.4. Hypochlorous acid is 100 times more effective as a sanitizer than the hypochlorite form. When water is low in alkalinity the pH will increase as the chlorine is added. When there is adequate alkalinity then as the chlorine is added the base is absorbed and the pH remains the same. Monitoring alkalinity is important in maintaining a stable pH of a swimming pool hot tub, or spa.\u003c\/p\u003e\n\u003cp\u003eThe contoured style of these Checkers’ fit in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.\u003c\/p\u003e\n\u003cp\u003eTo perform a measurement the instrument a water sample is placed into a cuvette and the meter is zeroed. Next, a reagent is added that will react with alkalinity to produce a distinctive range of colors from yellow to greenish-blue. Last, place the vial into the Checker, press the button and read the results. It’s that easy. It is important to note that if chlorine is in the water sample to be tested then it is necessary to add HI937554-53 chlorine remover first before proceeding with the test.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eHI7754\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eName\u003c\/td\u003e\n\u003ctd\u003ePool Line Alkalinity Checker HC - HI7754\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Range\u003c\/td\u003e\n\u003ctd\u003e0 to 500 ppm (as CaCO\u003csub\u003e3\u003c\/sub\u003e)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Resolution\u003c\/td\u003e\n\u003ctd\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Accuracy\u003c\/td\u003e\n\u003ctd\u003e±5 ppm ± 5% of reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlkalinity Method\u003c\/td\u003e\n\u003ctd\u003ecolorimetric Method. The reaction causes a distinctive range of colors from yellow to greenish blue to develop. This checker has been developed to work with fresh water samples.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Source\u003c\/td\u003e\n\u003ctd\u003eLED @ 610 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotometer\/Colorimeter Light Detector\u003c\/td\u003e\n\u003ctd\u003esilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\/Life\u003c\/td\u003e\n\u003ctd\u003e1.5V AAA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutomatic Shut-Off\u003c\/td\u003e\n\u003ctd\u003eafter 10 minutes of non-use and 2 minutes after reading\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironment\u003c\/td\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F); RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e64 g (2.3 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e86.0 mm x 61.0 mm x 37.5mm (3.2 x 2.4 x 1.5”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOrdering Info\u003c\/h3\u003e\u003cp\u003eHI7754 Checker HC is supplied with sample cuvettes with caps (2 pcs.), Alkalinity reagent starter (25 tests), 1.5VAAA battery (1 pc.), and instructions all packaged into a custom carrying case.\u003c\/p\u003e\u003ch3\u003eManuals\u003c\/h3\u003e\u003cp\u003e\u003ca href=\"https:\/\/manuals.hannainst.com\/HI7754\" target=\"_blank\" rel=\"noopener\"\u003ePool Line Alkalinity Checker HC - HI7754\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":67871413010801,"sku":"HI7754","price":6371.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/9535\/5761\/files\/hi7754.jpg?v=1792646524","url":"https:\/\/hannainst.in\/products\/pool-line-alkalinity-checker-hc-hi7754","provider":"hanna","version":"1.0","type":"link"}