The HI-701 Free Chlorine Low Range Checker offers a simple, accurate, and affordable way to measure 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 EPA-approved DPD method (Standard Method 4500-Cl G), 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 ±0.03ppm ±3% of reading
- Dedicated to a single parameter for reliable free chlorine measurement
- Operates on 1 x AAA battery (included)
- Auto power-off after 2 minutes of inactivity
- Built-in timer for consistent reaction readings
Measurement Range:
0.00 to 2.50ppm (mg/L)
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:
-
Range: 0.00 to 2.50 ppm (mg/L)
-
Resolution: 0.01 ppm (mg/L)
-
Accuracy: ±0.03 ppm or ±3% of reading @ 25°C
-
Measurement Method: EPA-approved DPD method (Standard Method 4500-Cl G)
-
Light Source: LED @ 525 nm
-
Light Detector: Silicon photocell
-
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
-
Power Supply: 1 x AAA battery
-
Auto Power-Off: After 2 minutes of inactivity
-
Dimensions: 81.5 x 61 x 37.5mm
-
Weight: 64g
This free chlorine checker is an essential tool for anyone needing fast and accurate chlorine monitoring, perfect for testing dechlorinator units and tap water supplies.
