HI 755 Akalinity Checker

Range 0 to 300 ppm Resolution 1 ppm Accuracy @ 25° C/ 77° F ± 5 ppm ( mg/ L) ± 5% of reading Light Source LED @ 610 nm Light Detector silicon photocell Method colorimetric method Environment 0 to 50° C ( 32 to 122° F) ; RH max 95% non-condensing Battery Type ( 1) 1.5V AAA Auto-off after ten minutes of non-use Dimensions 81.5mm x 61mm x 37.5mm ( 3.2" x 2.4" x 1.5” ) Weight 64 g ( 2.25 oz.) Ordering Information HI755 Checker® is supplied with ( 2) sample cuvettes with caps, alkalinity reagent starter kit for 25 tests ( 1 bottle of alkalinity reagent) , 1 ml syringe and tip) , ­ ­ ­ battery, instructions and quick start guide.