Tank Level Warning Display Kit

RCALM Series – Tank Level Display

RCALM3 Tank Level Warning Display
RCALM3 Tank Level Warning Display

The 3P RCALM Series Display Panels provide a highly effective low water level warning for water tanks. Alternatively float switch wiring can be reversed on the RCALM 1 and 2 Series panels to provide a high level warning instead.

Choose from a visible (light), or audible (repeating buzzer) alert or both.

Options available for outputs into Building Management Systems (BMS).

24vdc or 230vac options also available.

There are three versions of the RCALM series with further options available in each type:
Low/High level warning (amber light)
Power status (green light)
Low/High level warning (amber light/buzzer)
Full tank (green light)
Mid water level (amber light)
Low water level (red light/buzzer)


Product Code Light(s) Buzzer BMS Float Switch Buy Now
RCALM1 1 Yes Yes 230vac
RCALM1L 1 Yes Yes 24vdc
RCALM1Q  1  Yes  230vac
RCALM1LQ  1  Yes  24vdc
RCALM1B  1  Yes  230vac
RCALM1LB  1  Yes  24vdc
RCALM1QB  1  230vac
RCALM1LQB  1  24vdc
RCALM2 2 Yes Yes 230vac
RCALM2L 2 Yes Yes 24vdc
RCALM2Q 2 Yes 230vac
RCALM2LQ 2 Yes 24vdc
RCALM2B 2 Yes 230vac
RCALM2LB 2 Yes 24vdc
RCALM2QB 2 230vac
RCALM2LQB 2 24vdc
RCALM3 3 Yes Yes 230vac
RCALM3L 3 Yes Yes 24vdc
RCALM3Q 3 Yes 230vac
RCALM3LQ 3 Yes 24vdc
RCALM3B 3 Yes 230vac
RCALM3LB 3 Yes 24vdc
RCALM3QB 3 230vac
RCALM3LQB 3 24vdc

Included Components

  • Control panel
  • Attached mains cable
  • Installation & Operation Manual
  • Float switch or level switch (RCALM 1 & 2 only)

RCALM3 Series Required Components (not included)

  • 2 x Float switch, at least 1 float switch must be 2 way or double acting (3 cores)

Designed, programmed, built and assembled in the UK. With full UK based technical support. rapid spares availability and spare parts supply from UK stocks, with full repair/recon service to component level.


  • Visible and/or Audible Alarm
  • Low or High Water Level Warning (RCALM 1 and 2)
  • Adjustable Water Level Warning
  • Reliable Water Level Indication (RCALM3)