2PCS WFS27 G3/4 DN20 Female Thread Connecting Water Paddle Flow Switch/Sensor for Heat Pump Water Heater, Air Conditioner Description Max: 250VAC Max: 1A Output: SPST magnetic replace Pressure: 10bar Temperature: -10℃~85℃ Protection class: IP65 Material: Body: PPO plastic Paddle: PPO plastic Seal: NBR Metering substance: Water, Gas, Oil