Hanna HI771-25 Chlorine UHR Checker HC

Hanna HI771-25 Reagents for Chlorine UHR Checker HC

The Hanna HI771-25 Chlorine UHR Checker HC designed for use with the HI771 Chlorine Ultra High Range Checker HC, enabling accurate and efficient testing of chlorine concentrations in water up to 500 ppm. These high-quality, pre-measured reagents follow the colorimetric method based on Standard Method 4500-Cl, ensuring laboratory-grade performance for high-strength disinfection monitoring.

With quick reaction time and reliable color development, the HI771-25 reagents are ideal for professionals who need precise chlorine testing in industrial, municipal, or environmental applications.

Key Features:

• Ultra High Range Compatibility: Designed for chlorine concentrations from 0 to 500 ppm—ideal for applications requiring strong disinfectant control.

• Pre-Measured for Accuracy: Each packet contains a precisely measured amount of reagent for one test, ensuring consistency and eliminating dosing errors.

• Colorimetric Method: Chlorine reacts with the reagent to form a colored compound, which is read by the HI771 Checker HC at 525 nm.

• Reliable Performance: Formulated with high-purity chemicals for consistent and repeatable results.

• Simple to Use: Just add the reagent to your sample, mix, and insert the cuvette into the Checker for immediate digital results.

Technical Overview

• Measurement Range: 0 to 500 ppm

• Resolution: 1 ppm

• Accuracy (@25°C): ±3 ppm ±5% of reading

• Light Source: LED @ 525 nm

• Light Detector: Silicon photocell

• Method: Adaptation of Standard Methods for Water and Wastewater 4500-Cl

• Operating Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing

• Power Supply: 1 x 1.5V AAA battery

• Auto-Off: After 10 minutes of inactivity

• Dimensions: 81.5 x 61 x 37.5 mm

• Weight: 64 g (2.25 oz.)

Ideal Applications:

• Industrial Disinfection Systems

• Municipal Water Treatment

• Wastewater Facilities

• Environmental Monitoring

• Food Processing Sanitation

• Research and Laboratory Testing