1-30L Per Minute Sensor DIGITEN NPT Thread G1/2" Water Flow Hall Sensor Switch Flow Meter Hall Effect Flow Sensor The flow sensor with sealing ring and all raw materials comply with ROHS,food-grade. G1-1/2 DN40mm Hall Water Flow Sensor USS-HS121TA 5... – Grandado Water-proof, leak-proof, pressure-resistance, heat-resistance, cold-resistance. Flow Range: 1-30L/min. Operating Temp: ≤80℃ Operating Humidity: 35%~90%RH Allow Compression: Water pressure 1.75 Mpa below. Insulation Resistance: >100M OHM The appearance is light and handy,small and easy to install,bearings are used for rotating. Water Flow Control LCD Display G1/2Thread Water Flow Hall Sen Integrated magnetic Hall effect sensor is sealed from the water pipe, and allows the sensor to stay safe and dry, outputs an electrical pulse with every rotation.