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The HI 707 Checker®HC is a simple, accurate, and cost effective way to measure low ranges of nitrite. Designed as a more accurate alternative to chemical test kits, the HI 707 provides quick, accurate results in four easy steps.
The HI 707 uses an adaptation of EPA diazotization method 354.1. The reaction between nitrite and the reagent causes a pink tint in the sample.
Order Information: The HI 707 Checker®HC is supplied with 2 cuvettes and caps, reagent starter kit (6 packets of nitrite LR reagent), 1 x 1.5V AAA battery, and an instruction manual.
Product Manuals
Manual: Download
Specification :
| Range | 0 to 600 ppb NO2 -N | |
| Resolution | 1 ppb | |
| Accuracy (@25°C/77°F) | ±20 ppb ± 5% of reading | |
| Measurement Method | Colorimetric | |
| Light Source | Photodiode @470 nm | |
| Light Detector | Silicon photocell | |
| Method | Adaptation of EPA diazotization method 354.1. The reaction between nitrite and the reagent causes a pink tint in the sample. | |
| Power Supply | 1 x 1.5V AAA battery | |
| Power Auto Off | After 10 min. of inactivity | |
| Environment | 0 to 50°C (32 to 122°F); RH max 95% non-condensing | |
| Dimensions | 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”) | |
| Weight | 64 g (2.25 oz.) |
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