Range : 0 to 500 ppm
Resolution : 1 ppm
Accuracy @ 25°C/77°F : ±3 ppm ±5% of reading
Light source : LED @ 525 nm
Light detector : silicon photocell
Method : adaptation of the Standard Methods for Water and Wastewater 4500-Cl.
Environment : 0 to 50°C (32 to 122°F); 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 (3.2" x 2.4" x 1.5”)
Weight : 64 g (2.25 oz.)