Hanna Instruments HI701 Free Chlorine Checker® HC
Between inexpensive chemical test kits and sophisticated equipment is a gap that is filled by the Hanna Free Chlorine Checker®. Chemical test kits rely on the human eye to distinguish changes in hue, which limits their accuracy and resolution.
To precisely determine absorbance and ion concentration, professional instrumentation combines a light source, such as an LED or tungsten lamp, with a filter and a light sensing detector. Professional instrumentation might cost hundreds of dollars but provides superior resolution and precision.
The Hanna Free Chlorine Checker® offers the precision of specialized equipment at the cost-effective pricing of a chemical test kit by utilizing a fixed wavelength LED and silicon photo detector.
- Compact, Portable Design
- Built-in Timer
- One-Button Operation
Measurements of free chlorine can be made easily, precisely, and affordably with the HI701 Checker®HC (Handheld Colorimeter). The active type of chlorine is called free chlorine, and it is used to clean vegetable rinse water, swimming pools, and spas. A reverse osmosis membrane can also be damaged by free chlorine in water, so it must be removed from the source water before use.
The HI701 was created as a more precise substitute for chemical test kits and offers prompt, precise results in four simple steps:
Features at-a-glance:
- For use with freshwater samples
- Easier to use and more accurate than chemical test kits
- Dedicated to a single parameter
- Small size, big convenience
- Ideal for: Water Quality, Environmental, Education, Pools and Spas
| SKU | HI701 |
|---|---|
| Product Name | Free Chlorine Checker® HC – HI701 |
| Quote Required | Yes |
| Free Chlorine Range | 0.00 to 2.50 ppm |
| Free Chlorine Resolution | 0.01 ppm |
| Free Chlorine Accuracy | ±0.03 ppm ±3% of reading |
| Chlorine Method | Adaptation of USEPA method 330.5. The reaction between free chlorine and the DPD reagent causes a pink tint in the sample. |
| Photometer/Colorimeter Light Source | LED @ 525 nm |
| Photometer/Colorimeter Light Detector | silicon photocell |
| Battery Type/Life | (1) 1.5V AAA |
| Automatic Shut-Off | after two minutes of non-use |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing |
| Weight | 64 g (2.25 oz.) |
| Dimensions | 81.5mm x 61mm x 37.5mm (3.2″ x 2.4″ x 1.5”) |
| Ordering Information | HI701 Checker® is supplied with (2) sample cuvettes with caps, free chlorine reagent starter kit (reagents for 6 tests), battery, instructions and quick start guide. |
