LTH Electronics - Model PTU50 Series -Ultrasonic Level Transmitters for Liquids

4 Wire 4-20mA IP68 transmitter with Modbus protocol, optional bluetooth (51/56 only). Designed for use with the VWL90M controller. Range of measurement: 0.05 to 1.5 metres, 0.3 to 5 metres; 0.5 to 12 metres. Non-contact level measurement suitable for measuring liquids or bulk solids.