LRC 3 Small - Radio handheld transmitter with overfill prevention function

secu tech lrc3 small

The "LRC 3 Small" is a radio remote control with overfill prevention function and additional remote control functions. The standard "LRC 3 Small" supports limit value transmitters according to TRbF or EN 13616.


  • Motor (pump) start / stop
  • Filling start / stop
  • Rotational speed control
  • Wind / rewind hose drum
  • Switch auxiliary shaft to / and off
  • Additional freely definable remote control functions
  • Deadman operation and emergency stop
  • ANA function (Germany) - deadman
  • Automatic fill stop

The "LRC 3 Small" handheld transmitter is small, lightweight, easy to use, reliable and suitable for direct connection to the limit probe.

In the 433 MHz radio frequency band, the LRC-Small works very narrow-band and temperature-stable, making it ideal for use in cold environments or in the case of large temperature differences (eg driver's cab +20 degrees, outdoor use -15 degrees).

The "LRC 3 Small" is plugged directly to the probe, while the device checks the functionality of the limit probe and then releases the opening of the valves (start of the pump) automatically. The "LRC 3 Small" is powered by rechargeable lithium-ion batteries with up to 11 hours of continuous operation. These batteries are simple and easily replaceable.

The radio link is classified in the open field with over 500m range as sufficient and very good. Even in basement or urban tanks, LRC3 can reach long ranges. In the event of radio failure, faulty probe or other unforeseeable events, the system always switches to the safe state and switches off.
Overfill is not possible.


  • Mineraloil products not EX
  • Heating Oil products
  • Chemical products not EX
  • Foods Industry
  • Loading/unloading of road tankers
  • Filling of stationary tanks and much more

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