hot! Automatic Tds Meter Calibration 0-990ppm Water Quality Meter For Swimming Pool Aquarium Drinking

Description: Name: Tds Meter

tds scale: 0 - 990ppm (mg/l) Accuracy: +/- 2% Batteries: 2x LR44 (included)

Packing list: 1 x Tds Meter  Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.  Manual measuring,please allow 1-3mm error,thank you.