1. Multifunctional water quality tester

The EZ-9909 is a new multifunctional water quality tester that can measure pH, TDS, EC, salinity, and temperature. Wide measuring range, can measure both freshwater salt and sea salt

2.With backlight function, it can be tested at night

3. Waterproof grade is IP67, no adverse effect when the shell is temporarily immersed in 1M water at normal temperature and normal pressure.

4. Wide range of applications

The product can be used in swimming pools, spas, family kitchens, laboratories, farms and aquariums.

5.Use and calibration procedures and precautions