Designed with  office refurbishment and home in mind, the LD1V water leak detection system detects water leaks that can occur at tea points and areas where hot drinks are prepared, as well as in kitchens areas, around vending machines and in a whole variety of small areas.

The LD1V alarm has been designed to mount into a standard electrical double socket back box. Being limited to and supplied with, 3 metres of interconnecting and 5 metres of water detection cable, the unit must be positioned locally to the source of any water leak and suites areas such as tea points, kitchens or vending machines.

The LD1V can also stop the leak by closing a water valve and is provided with a valve shutdown override facility allowing reinstatement of the water supply after a leak, whilst waiting for the detection cable to dry out.

As standard, the LD1V is provided with a normally open volt free contact for onward signalling to a BMS or existing alarm system.


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All of the information below is available in our LD1V Water Leak Alarm PDF data sheet.

Standard Features

  • Fits into a standard deep double gang electrical socket back box
  • 230VAC 50/60Hz operation
  • Audible warning device with “Mute” push button to silence the alarm
  • Flashing Red/Green Alarm lamp that changes to a steady Red when the alarm is muted
  • Green Power ON lamp
  • Volt free contact for onward alarm signalling to a BMS
  • Water shutoff valve control to stop the leak when an alarm is raised
  • Water valve shutoff override facility allowing the water to be turned on when alarm is still active
  • Alarms latched until Mute operated to give indication of transient water leaks
  • A Bi-directional DC signal in the sensors to stop electrolyses and polarisation
  • Sensitivity adjustment allowing it to be set for high to low sensitivity
  • Supplied as standard with 3m connection and 5m water detection cable
  • Any double blanking plate can be used allowing the unit to match the surrounding décor


  • Housing type – Electrical double gang blank plate
  • Mounting – Double gang deep back box
  • Size – 149mm x 88mm x 22mm deep
  • Colour – White as standard
  • Input power – 50 Hz single phase 230VAC +/- 10%
  • Burden – < 150mW
  • Power termination – L, E & N terminal block mounted to back of the PCB
  • Water valve termination – L, E & N terminal block mounted to back of the PCB
  • BMS termination – Terminal block mounted to back of the PCB
  • Voltage to sensor – Bi-directional (AC) 5VDC
  • Connections to sensor – Terminal block mounted to back of the PCB
  • Maximum length of detection cable – 5 metres
  • Available Water Valve sizes – ½ ” , ¾ ” , 1 ” , 1 ¼ ” ,1 ½ ” & 2 ”
  • Water valve type and voltage – 230VAC powered open, slam shut. Sizes
  • Minimum / Maximum valve water pressure – ½ ” , ¾ ” , 1 ” = 0.1 bar – 20 bar , 1 ¼” , 1 ½ ” & 2 ” = 0.1 bar—10 bar

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