Pocket Checker for Nitrite (HI-708 High Range)
 Ref: HI-708
Range                0 to 150 ppm
Resolution                1 ppm
Accuracy @ 25°C                ±3 ppm ±5% of reading
Light source                LED @ 575 nm
Light Detector                Silicon photocell
Method                Adaptation of the Ferrous Sulphate method
Environment                0 to 50°C; RH max 95% non-condensing
Battery Type                (1) 1.5V AAA
Auto-off                After ten minutes of non-use
Dimensions                81.5mm x 61mm x 37.5mm
Weight                64g