H HILABEE Tank Pool Water Level Liquid Sensor Float Indicator Metal Switch DC5V~18V

Amazon.co.uk Price: £5.57 (as of 17/12/2019 06:09 PST- Details)

All raw materials conform to the ROHS test standard.
This water flow sensor is mainly composed of plastic valve body, water flow rotor component and hall sensor.
Hall elements were imported from Germany and sealed with the pouring sealant to prevent water inlet. Never aging.