TDS Water Tester Pen for Pool Use

1 High-quality probe, high sensitivity, anti-rust, accurate measurement. 2 Easy to use, as long as it is placed in water, the TDS value of the water will be displayed immediately. 3 The whole adopts arc design, which is more comfortable to hold and easy to operate. 4 Suitable for hospitals, households, commercials, swimming pools, water plant laboratories, and aquaculture. 5 Stylish design, high-definition display, clear numbers and easy to read values.

What's in the box
1 x TDS Meter Test Pen