Digital Absorption Photometer Checker HC (Free Chlorine) HI701 1pc

A compact digital residual chlorine checker that displays information at a glance. Measures free chlorine from 0.00 to 2.50 ppm (mg/L). Since it is not a visual inspection, you can rest assured that the same results will be obtained regardless of who performs the measurement. Complies with the "spectrophotometric method using DPD reagent" specified by the official law. Built-in timer counts down to measurement. Compact size with an easy-to-read LCD screen. There is only one operation button, so even first-time users can use it with ease. Values ​​can be verified using standard solutions (standard solutions sold separately). It is widely used in tap water, drinking water, pools at nursery schools, kindergartens and schools, building management, etc. Measurement items: Free chlorine Measurement range (ppm): 0.00 to 2.50 Measurement principle: DPD method Resolution: 0.01 ppm (mg/L) Accuracy (at 25℃): ±3% ±3dgt Light source: LED (525 nm) Light receiving part: Silicon photocell Power supply: 1 AAA alkaline battery (included for testing) Size: 61.0 x 37.5 x 81.5 mm Weight: 64g Accessories: Glass cell x 2 sets, Reagent x 6 uses Checker HC *This product is not waterproof.