TDS Meter Digital Water Tester,WoEluone 3 in 1 TDS,Temperature and EC Meter,Accurate Ideal PPM Meter for Drinking Water, Aquariums,RO System and More

"What is TDS? And why should you care about it? TDS stands for Total Dissolved Solids, which are the inorganic salts and organic matter in liquid.

The lower the TDS level, the purer the water is.

Conversely, higher TDS level indicates more particles dissolved in liquid.

Product Features: Portable and handy: Upgrade the third generation portable TDS meter only weighs 46 grams.

Measurement range is wide from 0 to 9990 PPM.

Big backlit LCD for easy reading.

Green for TDS ≤ 40; Red for TDS > 40.

Automatic temperature compensation (ATC): It can automatically convert the indication value to 25 degrees, and automatic shutdown.

Long life of batteries: Using large capacity batteries, it can be used for more than 3 years.

Auto-Off in 2 Minutes to conserve battery."