HANNA 707 Mini-Photometer Nitrite Checker (up to 600 µg/L) fresh water

Simply measure your samples in a few steps:

1. Take a water sample and insert the cuvette into the photometer
2. Take a blank
3. Add the powdered reagent to your solution
4. Insert the cuvette into the photometer
5. Press the button and read the result within 10 seconds

Specifications:

• Range: 40 to 600 µg/L (ppb) NO2-N
• Resolution: 1 µg/L (ppb)
• Accuracy: ±20 µg/L (ppb) ±5% of reading
• Method: Adapted from EPA method 354.1 diazotisation
• Light source: LED at 470 nm
• Light detector: Silicon photocell
• Power supply: 1 x 1.5 V AAA battery
• Self-extinguishing: after 10 minutes of non-use
• Dimensions: 81.5 x 61 x 37.5 mm
• Weight: 64 g