Flood detector 1W-UNI 3m: Spot detection

A simple water flood sensor (water level) detects electrically conductive fluid through 4 outlets on the detector body (spot detection). The sensor can be placed on a wall or floor with a dielectric surface.

Using an RJ11 cable, it connects directly to the 1W-UNI port (Poseidon, Ares, STE2, ..) where the sensor shows the values 1 (flooded) / 0 (non-flooded).

  • Water flood spot detection
  • The sensor may be submerged below the fluid surface.
  • The middle hole facilitates mounting on a wall.
  • RJ11 sensor for STE2 / Ares / Poseidon2 LAN/GSM monitoring units.
Applications and usage: 
  • Detection: Water flood sensor (spot detection)
  • Interface: 1-Wire UNI (RJ11)
  • Cable length: 3m
  • Connects to: Poseidon2 (LAN monitoring), Ares (GSM monitoring)
  • Power supply: Powered from the 1-Wire UNI bus (RJ11)
  • Environment: Indoor or outdoor use

Horizontal menu

Simple spot water sensor. Detects water using four protruding pins on the sensor body. It has to be completely flooded to trigger an alarm.

The attached 3m cable can be directly connected to a RJ11 port of Ares or Poseidon2 monitoring units for water alarm.

The flood sensor can be left lying on the floor (on an electrically insulating surface), or attached to the floor or to a wall. Designed for flood detection, senses water and other electrically conductive liquids.

Monitoring the flood detector over LAN

  • The water flood sensor connects to the RJ11 connector for 1-Wire UNI sensors.
  • Flood detector does not need external power.

GSM water alarm when water is detected

  • All three sensors are connected to the T-Box hub for 5 RJ11 sensors.
  • The sensors are powered from the Ares internal battery even in case of power supply failure.


Why is Water Leak Detection system better than Flood detector

Water Leak detection vs. Flood detectionWater Leak Detection with the sensing cable is more expensive than simple spot water detection. However, WLD provides a much faster reaction to any water in the room. Thanks to the early alert significant damages to IT or other infrastructure can be avoided. Water Leak Detection with sensing cable is recommended in IT, data centers, technology, the medical sector, or anywhere else, where any water damage would be highly expensive.

Proper Water Leak Detection with a sensing cable helps you avoid costly damages thanks to an early alert that is triggered by the first few drops of liquid. Learn more about the difference between the WLD system with sensing cable and water spot detection in the application note.

 >> Water Detection: Sensing cable versus Flood sensor


HWg Video Flyer about water flood sensor

Read the Knowledge Base article about the heart of the WLD system - Sensing Cable A.

Read the Knowledge Base article about components of the WLD system by HW group.

Read the Knowledge Base article about the difference between Water Spot Detection and WLD Zone Detection.

Read the Knowledge Base Article about the top selling WLD components: Sensor WLD Relay 1W-UNI.

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