Greyline – Level – Monitoring

This new Greyline Transmitter displays, controls and transmits level. Mount the non-contacting ultrasonic sensor at the top of your tank and the compact, watertight electronics/display enclosure at a convenient location nearby. Operators can calibrate the LIT25 with its 2-button Keypad, without climbing the tank. Use the built-in relay for level control or alarm, the large 4-digit display for local indication, and the isolated 4-20mA output to transmit level to a PLC.

Manufactured by

CTH Industrial Controls can provide you with service and start up assistance for Greyline Instruments.




  • Low Cost
  • Isolated 4-20mA Output (1000 ohm)
  • Large LCD Display
  • Programmable Signal Relay
  • Non-Contacting Ultrasonic Sensor or Optional Pressure Sensor
  • Built-in 2-Key Calibrator
  • Watertight, Dust tight Enclosure


  • Measure Level or Open Channel Flow
  • User-Friendly Calibration System
  • Isolated 4-20mA (1000 ohm)
  • False Echo Rejection
  • 2 Programmable Control Relays
  • Electrical Surge Protection
  • Intrinsically Safe Sensor Option
  • Plug and Play Relay and Data Logger Options



PSL 5.0 Hybrid Pump Station Level Controller

  • Controls, Transmits and Displays
  • Non-Contacting Ultrasonic Sensor
  • New Dual-Technology Feature- Redundant Level Sensor Input
  • 6 Relays for Pump Control, Pump Alternation and Level Alarms
  • Isolated 4-20mA output
  • Built-in 5-Key Calibrator
  • Logs and Displays Relay Run Times


  • Measures Level, Differential Level and Open Channel Flow
  • Two Non-Contacting Ultrasonic Sensors
  • Large White Backlit LCD Display
  • Three Isolated 4-20mA Outputs
  • Built-in 5-Key Calibration
  • 2 Programmable Control Relays
  • Optional 2 Million Point Data Logger
  • Optional Intrinsically Safe Sensors

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