pH/TDS/ORP/TEMP/PPM/EC Tester

Feature:1. The PH value of the solution pool can be monitored remotely, it's safe and practical.2. Date transfer open distance is up to 80m/262.5ft.3. Emitter is sealed waterproof structure which can be put in water.4. External power supply, can measure 24 hours continuously, avoid reading error cau..