Description Uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation. Designed for marine aquariums. Dedicated to a single parameter. Small size, big convenience. Ideal for: Aquariums, Environmental, Aquaculture, Water Quality. Includes: Hanna Instruments HI 755 Checker HC handheld colorimeter (2) cuvettes with caps Liquid reagent for alkalinity Syringe with tip AAA battery Instructions Specifications 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) battery, instructions and quick start guide. Warranty 6 months
