High Quality Water Test Meter. Professional TDS EC & Temperature Meter. 3-in-1. Lifetime Guarantee! Accurate and Reliable Water Test Meter. With Protective Leather Case. Professional Quality, unlike Economy models available, You Get What You Pay For! If you are looking for a Super Accurate and Reliable Meter, this is the one for You! TDS tells you when you need to change your Filters... It Saves you Money and Protects Your Health! TECHNICAL SPECS: Accuracy:  2%. Range:0-5000ppm, 0-9990 s/cm, 0.1-80.0C, 32.0-176.0F. Last TDS Meter you'll have to buy, we're so confident we offer a 100% Money Back Guarantee for Life!