NB-WLD: Water leak detector with Narrowband IoT connectivity

NB-WLD is a water leak detector with Narrowband IoT connectivity. It uses a very sensitive detection cable.

NB-WLD is a simple device that detects water leaks using a moisture sensing cable. It allows connecting 1 sensing cable of up to 85m length. The total wiring length can be up to 185m (85m sensing cable + 100m connecting cable).

Thanks to early detection and alerting, NB-WLD can prevent substantial damages. It is powered by an internal battery with up to 3 years lifetime or external power supply.

The devices connect to the SensDesk where you can monitor and control your entire system. Your project is set up in just a few clicks and you can get your data in minutes.


  • Narrowband IoT (NB-IoT) connectivity
  • Internal battery with up to 3 years lifetime
  • External 5V DC power
  • Simple installation, remote device adoption
  • Hundreds of available sensors
  • Secure and reliable
  • Easy setup with a few clicks
  • Metal housing, DIN and rack mount available
Applications and usage: 
  • Leaky pipe detection (cable wrapped along the pipe)
  • Flood detection in an area: WLD detection cable laid along the walls in a room
  • Under raised floors
  • Above suspended ceilings
  • Detection of water leaks in drip trays
  • Detection of water leaks under air-conditioning outlets
  • Detection of water flood in a freezing or cooling plant

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Subscribed device (delivered with prepaid NB-IoT SIM card)

Default version of this product is called "subscribed". It's delivered with 3 years prepaid NB IoT SIM card included by HW group. Connectivity is provided by Vodafone, device can be in used in most of the countries. Remote device management and sensors monitoring is available via SensDesk service. Contact us for details.

3rd party SIM card for NB-IoT

You can use your own sim card for NB-IoT network (not LTE) connectivity. Data can be delivered to your own hosted installation of the SensDesk portal.  It's recommended for projects 100+ devices..
Contact us for details.


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WLD sensing cable A - 50m

Water leak detection cable A - 50m for use with HWg-WLD and HWg-WLD Relay.

WLD sensing cable A - 2+50m

Water leak detection cable A - 2+50m for use with HWg-WLD and HWg-WLD Relay.

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Water leak detection cable A - 2+10m for use with HWg-WLD and HWg-WLD Relay.