Hanna Total Chlorine Ultra Low Range Checker HC
Ultra‐low range chlorine testing with high accuracy
- Accurate ultra‐low chlorine testing from 0 to 500 ppb
- Compact, portable, and easy to use
- Supplied with reagents for 6 tests and full accessories
What is the Hanna Total Chlorine Ultra Low Range Checker?
The Hanna Total Chlorine Ultra Low Range Checker is a compact, portable device designed to measure ultra‐low levels of chlorine in swimming pools, spas, aquariums, and other water sources. It provides accurate results at a fraction of the cost of traditional chemical test kits. Using an adaptation of the USEPA method 330.5, the reaction between chlorine and DPD reagent produces a pink tint, allowing quick and reliable readings in four simple steps.
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Key Features:
- Small, palm‐sized design for portability
- Accurate readings from ±5 ppb ±5% of the measurement
- Built‐in timer for precise reaction timing
- Auto power‐off after 10 minutes of inactivity
- Uses a single AAA battery
- Supplied with 2 cuvettes, reagent starter kit for 6 tests, battery, and instructions
What are the features of the Hanna Total Chlorine Ultra Low Range Checker HC?
The Hanna Total Chlorine Ultra Low Range Checker HC measures total chlorine in ultra‐low ranges from 0 to 500 ppb with a 1ppb resolution. It uses a photodiode light source at 525 nm and a silicon photocell detector for precise colorimetric readings. Lightweight and battery‐operated, it is ideal for swimming pools, spas, drinking water monitoring, environmental testing, food processing, and freshwater or marine aquariums. Its quick, four‐step testing process ensures fast and accurate results for maintaining safe and clean water.




