Product Description

Hanna HI-720 Calcium Hardness Checker® HC

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The HI720 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure calcium. Designed as a more accurate alternative to chemical test kits, the HI720 provides quick, accurate results in four easy steps:

Features at-a-glance

Easier to use and more accurate than chemical test kits
Dedicated to a single parameter
Small size, big convenience
Ideal for: Water quality, Environmental, Plating, Education

Specifications Hanna HI-720 Calcium Hardness Checker® HC


SKU	HI720
Product Name	Calcium Hardness Checker® HC – HI720
Quote Required	Yes
Hardness, Calcium Range	0.00 to 2.70 ppm
Hardness, Calcium Resolution	0.01 ppm
Hardness, Calcium Accuracy	±5% of reading ± 0.20 ppm
Hardness, Calcium Method	adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Calmagite method. The reaction between calcium and reagents causes a reddish-violet tint in the sample.
Photometer/Colorimeter Light Source	LED @ 525 nm
Photometer/Colorimeter Light Detector	silicon photocell
Battery Type/Life	(1) 1.5V AAA
Automatic Shut-Off	after ten minutes of non-use
Environment	0 to 50°C (32 to 122°F); RH max 95% non-condensing
Weight	64 g (2.25 oz.)
Dimensions	81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”)
Ordering Information	HI720 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of reagent), 1 X 1.5X AAA battery, and an instruction manual.