hanna instrument HI 701 free chlorine colorimeter checker HC

HANNA HI 701 Free Chlorine Colorimeter Checker. The HI 701 CheckerHC (Handheld Colorimeter) is a simple, accurate and cost effective way to measure free chlorine. Free chlorine is the active form of chlorine used for disinfection of drinking water, swimming pools and spas, and vegetable rinse water. Free chlorine in water is also harmful to a reverse osmosis membrane and needs to be monitored for removal from source water prior to being used. Designed as a more accurate alternative to chemical test kits, the HI 701 provides quick, accurate results in a few easy steps. Specification : Range :0.00 to 2.50 ppm. Resolution : 0.01 ppm Accuracy @ 25oC/77oF :+-0.03 ppm +-3% of reading. Light Source : LED @ 525 nm. Light Detector :silicon photocell. Method :adaptation of the USEPA 330.5 and Standard Method 4500-Cl G. Environment : 0 to 50oC (32 to 122oF); RH max 95% non-condensing. Battery Type :(1) 1.5V AAA. Auto-off :after two minutes of non-use. Dimensions : 81.5mm x 61mm x 37.5mm (3.2 #34; x 2.4 #34; x 1.5) Weight :64 g (2.25 oz.) Ordering Information :HI 701 Checker is supplied with (2) sample cuvettes with caps, free chlorine reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.