PRU-5S3G float level switch PRU-5S3G float level switch belongs to the type of non-contact sensors. It is used to control the liquid level and two-position control of mechanisms in ship, stationary installations. Liquid levels in holds and tanks are controlled by float and hydrostatic sensors, as well as sensors based on the use of physical properties of the liquid (ohmic, capacitive, thermal, ultrasonic, optical, etc.). The application of this or that type of sensor depends on the place of its installation, operating conditions on the ship and fluid parameters. The float switch of the PRU-5S3G level belongs to the type of contactless sensors. Designed to control liquid level and two-position control of mechanisms in ship, stationary installations. PRU-5S3G technical characteristics Operation differential, mm 35 ± 15. AC supply voltage, V 220. Working pressure of the controlled liquid, no more than, MPa, 2.1