Digital Absorption Photometer Checker HC (Iron) HI721 1 piece

Easy to operate with just one button. Large, easy-to-read display. It is effective for managing chlorine concentration during chlorine disinfection. Measurement items: Iron Measurement range (ppm): 0.00 to 5.00 Measurement principle: Phenanthroline method Resolution: 0.01 ppm (mg/L) Accuracy (at 25℃): ±2% ±4dgt 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 Checker HC *This product is not waterproof.