LIT25 Level Indicating Transmitter

  • Maximum Range​ of Sensor
    32 ft (10m)
  • Accuracy​
    ±0.25% of Range
  • Output​
    Isolated 4-20mA, 1000 ohm load maximum
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This new LIT25 Level Indicating 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.

The standard ultrasonic Sensor measures liquid levels up to 32 ft. (10 m), and includes automatic temperature compensation. Choose the optional all-Teflon sensor for chemical compatibility, or one rated to 50 ft (15.6 m) range. All ultrasonic sensors are available with optional intrinsic safety for installation in hazardous rated locations. The LIT25 can also be ordered with gauge-type pressure sensors for special applications.

General Specification
Transmitter Enclosure 

Watertight, dust tight NEMA4X (IP 66) polycarbonate with clear, shatterproof cover

Operating temperature: -40 to 150°F (-40 to 65°C)

Isolated 4-20mA, 1000 ohm load maximum

Display Large (3/4 in, 19 mm high) 4 digit LCD
Temperature Compensation Temperature probe inside level sensor for high accuracy in changing temperatures
Accuracy ±0.25% of Range or 2 mm (0.08"), whichever is greater
Sensor Specification
Maximum Range

32 ft (10 m)

Beam Angle 8° Locate 1 ft (300 mm) from tank sidewall for every 10 ft (3 m) depth
Operating Frequency 42 KHz
Exposed Materials PVC and Teflon
Operating Pressure 20 psi (1.35 bar) maximum
Sensor Cable RG62AU coaxial
Deadband (Blanking) Programmable, Minimum 12 in (305 mm)

Tank Inventory

Level Monitoring and Control