1. Four-in-one function: This pen can be used to test PH/EC/TDS/TEMP, with a high-definition LCD display, easy to read. 2. Accurate and reliable: In order to achieve high precision, it is equipped with high-quality titanium alloy probes and reliable glass electrodes to ensure accurate measurement values. 3. Simple and instant: easy to operate, just turn on the test pen and stir the water gently, then a stable reading will be displayed on the display in a few seconds, the test is fast and accurate. 4. Small and portable: small size, light weight, easy to carry. 5. Wide range of uses: very suitable for testing domestic water, food pH, water for fish tanks, swimming pools, medical testing, flower planting, etc.
