Range

0.00 - 2.00 ppm

Resolution

0.01 ppm

Accuracy @ 25°C/77°F

±5% of reading ± 0.20 ppm

Light Source

LED @ 525 nm

Light Detector

silicon photocell

Method

adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, EDTA colorimetric method. The reaction between magnesium and reagents causes a reddish-violet tint in the sample.

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

86.0 mm x 61.0 mm x 37.5 mm (3.4" x 2.4" x 1.5")

Weight

64 g (2.25 oz.)

Ordering Information

HI719 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (50 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.