Automatic Tds Meter Calibration 0-990ppm Water Quality Meter

--Pulse ignite, no battery needed, high efficiency. --Small and portable, suitable for home and outdoor. --Waterproof design, not influence use when meeting water. --Comes with a rope for easy carrying. --Used for camping stoves without ignition devices..

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.