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Leak KNX

Leakage Sensor for Water/Pipe Break Detection

The Leakage sensor Leak KNX includes an evaluation unit and a probe. If there is water between the electrodes of the probe, the evaluation unit produces an acoustic alarm. Additionally, the alarm signal is sent to the KNX bus.

  • Leak KNX Leak KNX
  • Detailed view probe Detailed view probe
  • Detection of water on the probe
  • Acoustic alarm signal by the evaluation unit during a water alarm (sustained beeping tone). Short beeping during the follow-up time (1 minute after the end of the alarm)
  • Alarm signal sent to the KNX bus with a text message
  • 4 AND and 4 OR logic gates with each 4 inputs. Every switching incident as well as 16 logic inputs in the form of communication objects, may be used as inputs for the logic gates. The output of each gate may optionally be configured as 1 bit or 2 x 8 bits
  • Configuration is made using the KNX software ETS 5

Analysis unit:

Casing Plastic
Colour Grey
Installation Surface mounted
Protection category IP 20
Dimensions approx. 105 x 105 x 65 (W × H × D, mm),
Weight approx. 180 g
Ambient temperature Operation -20…+70 °C, storage -55…+90°C.
Ambient humidity max. 95 % RH, avoid condensation
Auxiliary voltage20...32 V DC
Power on the bus 10 mA
Data output KNX +/- Bus connector terminal
Communication objects 54
Current Consumption at 24 V DC ±10%
no alarm: max. 15 mA
alarm: max. 30 mA
Probe input 1 x electrode probe, plug-in BNC terminal


Casing Polished stainless steel
Installation for placing on the floor
Protection category IP 68
Electrode chemical resistanceWater
Dimensions Diameter: approx. 77 mm
Cable length approx. 140 mm (plus cable grip and plugs)
Weight approx. 200 g