Pocket Checker for Nitrite (HI-707) Low Range  Ref: HI-707
Range 0 to 600 ppb NO2-NResolution 1 ppbAccuracy @ 25°C ±20 ppb ±5% of readingLight source LED @ 470 nmLight Detector Silicon photocellMethod Adaptation of the EPA Diazotisation method 354.1Environment 0 to 50°C; RH max 95% non-condensingBattery Type (1) 1.5V AAAAuto-off After ten minutes of non-useDimensions 81.5mm x 61mm x 37.5mmWeight 64g