Hanna HI762-11 Free Chlorine Checker HC

Hanna HI762-11 Free Chlorine Checker HC

The Hanna HI762-11 Free Chlorine Ultra Low Range Checker HC is a user-friendly handheld colorimeter that combines the precision of laboratory-grade instruments with the simplicity of a chemical test kit. Designed to measure ultra-low levels of free chlorine, it’s ideal for applications where accuracy and sensitivity are critical but budget and convenience matter.

Traditional chemical test kits rely on the human eye to compare color changes, which can lead to inconsistencies. In contrast, the HI762-11 uses a fixed-wavelength LED light source and a silicon photo detector to deliver accurate, repeatable results—at a fraction of the cost of professional instruments.

Key Features:

• Ultra Low Range Detection: Measures free chlorine levels from 0 to 500 ppb, perfect for sensitive applications such as drinking water and environmental monitoring.

• High Accuracy: Offers a resolution of 1 ppb and accuracy of ±4% of reading ±20 ppb at 25°C.

• Compact & Portable: Lightweight, palm-sized design makes it perfect for field or laboratory use.

• Digital Precision: Eliminates visual interpretation errors common with traditional test kits.

• Simple Operation: One-button design for easy and quick testing.

• Automatic Power Off: Conserves battery life by shutting down after 10 minutes of inactivity.

• Low Maintenance: Powered by a single 1.5V AAA battery, with no need for complicated calibration.

Technical Specifications:

• Range: 0 to 500 ppb

• Resolution: 1 ppb

• Accuracy (@25°C): ±4% of reading ±20 ppb

• Light Source: LED @ 525 nm

• Light Detector: Silicon photocell

• Method: Colorimetric DPD method

• Environment: 0 to 50°C; max 95% RH 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 (3.2 x 2.4 x 1.5″)

• Weight: 64 g

Ideal Applications:

• Drinking Water Monitoring: Detect trace levels of free chlorine to meet safety standards.

• Environmental Testing: Assess chlorine levels in natural water bodies and wastewater.

• Aquarium & Aquaculture: Protect aquatic life by detecting and managing residual chlorine.

• Food & Beverage Industry: Ensure safe cleaning and sanitation procedures.

• Laboratory & Educational Use: Provides reliable, high-resolution results for research and instruction.