Product description: :

1.Measuring range:0-1999 PPm(mg/L)
2.Resolution: 1 PPm(mg/L
3.Accuracy: ±2%F.S 
4.Operating Temperature: 0℃- 50℃ 
5.Power Supply: 2×3V(CR2032 Battery) 
6.Environment: Humidity: ≤95%
7.Display:4-digital LCD
8.Weight:46g
9.Dimension:150mm×27mm×20mm
Pocket sized and feather-weight for portable use in a large number of applications including Production and drinking of pure water,Cleanness of swimming pool water,Food processing,Hospitals and medical products,Aquatic cultivation,Boiler water,Households and offices,Aquarium water,Teaching of physics and chemistry,Electroplating water,Cooling towers,Laboratories