... & CE approval; - Mass production, competitive price. Sensor Water Flow Switch/Sensor Series(CE,RoHS Certification approved)Operating Principle: FAST® magnetic ... petrochemical industry ,water treatment for environmental protection (Chiller, Heat pump water heater ), welding equipment ,laser equipment and ... :water, other liquidsWorking Temperature Rating:T1:-40~105Lowest sensor flux:0.7, 0.8, 1.0, 1 ...