The HI-762 Free Chlorine Ultra Low Range Checker offers a simple, accurate, and affordable way to measure ultra-low concentrations of free chlorine in water.
Designed as a more reliable alternative to traditional chemical test kits, this compact device delivers quick and precise results in just a few easy steps. It uses a fixed wavelength LED and a silicon photo detector to provide the accuracy of professional instrumentation at a fraction of the cost. Operating with an adaptation of the USEPA method 330.5 (DPD method), the reaction between chlorine and the reagent creates a color change, which the checker measures with high resolution and accuracy.
Key Features:
- Compact, palm-sized design for easy handling
- High accuracy with ±4% of reading ±20ppb
- Dedicated to a single parameter for reliable free chlorine measurement
- Operates on 1 x AAA battery (included)
- Auto power-off after 10 minutes of inactivity
- Built-in timer for consistent reaction readings
Measurement Range:
0 to 500ppb
What’s Included?
- 2 cuvettes with caps
- Reagent starter kit (6 sachets)
- 1 x AAA battery
- Instruction manual
Spare Reagents:
Refill reagent kits are available separately, containing 25 sachets for additional tests. Simply select the refill option from the dropdown menu.
Specifications:
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Range: 0 to 500ppb
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Resolution: 1ppb
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Accuracy: ±4% of reading ±20ppb
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Measurement Method: Colorimetric
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Light Source: LED @ 525 nm
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Light Detector: Silicon photocell
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Method: Adaptation of USEPA method 330.5 (DPD method)
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Power Supply: 1 x AAA battery
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Auto Power-Off: After 10 minutes of inactivity
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Dimensions: 81.5 x 61 x 37.5mm
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Weight: 64g
Conversion to mg/L:
- 1000ppb = 1mg/L
- 500ppb = 0.5mg/L
- 100ppb = 0.1mg/L
- 10ppb = 0.01mg/L
This ultra-low range chlorine checker is an essential tool for anyone needing fast and accurate chlorine monitoring, perfect for testing dechlorinator units and tap water supplies.
