Name: HI771 Checker HC ® - Chlorine, Ultra-High Range
Brand: HANNA Instruments Inc.
SKU: HI771
Availability: InStock

The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.

1.) Step One – Add a sample to the included cuvette(s)

2.) Step Two – Insert sample into the Checker and zero it out

3.) Step Three – Remove sample and add reagent

4.) Step Four – Reinsert sample and click the button to measure your results or… – Press and hold the button for 3 seconds for a time reaction reading
The HI 771 uses an adaptation of the standard methods for water and wastewater 4500Cl.

Specification :

Range		0 to 500 ppm
Resolution		1 ppm
Accuracy (@25°C/77°F)		±3 ppm ± 5% of reading
Measurement Method		Colorimetric
Light Source		Photodiode @525 nm
Light Detector		Silicon photocell
Method		Adaptation of the standard methods for water and wastewater 4500Cl.
Power Supply		Battery – 1 x 1.5V AAA
Power Auto Off		After 10 min. of inactivity
Environment		0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions		81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Dimensions		81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight		64 g (2.25 oz.)