CheckerHC - Model HI 707 -Handheld Colorimeter - Nitrite Low Range

1.) Step One - Add a sample to the included cuvette(s)
2.) Step Two - Insert sample into the Checker and zero it out
3.) Step Three - Remove sample and add reagent
4.) Step Four – Reinsert sample and click the button to measure your results or…
- Press and hold the button for 3 seconds for a time reaction reading

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.

• Small palm-sized design
• Accurate from ±20 ppb ± 5% of reading
• Dedicated to a single parameter
• Uses a single AAA battery
• Auto Power Off after 10 minutes in inactivity
• Built-in timer for timed reaction readings

• Water Quality
• Education
• Aquariums
• Environmental
• Wastewater

• 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.)