Water Leak Detectors

A typical detector senses water by conductivity: water bridges two contacts, or the conductors of a sensing cable, and the change raises an alarm. Winland WaterBug sensors, for example, activate when a conductive bridge forms between two contacts, and the Acre N54539-Z194-A100 detects water through two gold-plated feet. The Acre is not for use with flammable liquids.

A probe for a known risk point, such as a tank, pump or drip tray, and sensing cable to cover a larger area such as a raised floor or ceiling void. The Vimpex IL-WDP-01 probe gives point detection on solid floors, and Hydrosense HYDW-10 cable joins into zones of up to 50m. The Vimpex IL-Int-F interface lets cable and probes share one zone.

Yes, or an interface into another system. The Vimpex HSCP-S-4-230 is a 4-zone Hydrosense conventional panel and the Hochiki 14501630-00 a leak control panel. The Vimpex IL-Int-F interface has a remote indicator output and a blue LED that shows where the leak is, and the Acre N54539-Z194-A100 has a changeover relay output for a building system.

Yes, with an Ajax WaterStop valve, which closes the water supply automatically when a leak detector triggers, and also by schedule or from the Ajax app. It pairs a brass ball valve with an electric actuator and Jeweller radio, in DN15, DN20 and DN25 sizes. For Identi-Leak wired systems, the Vimpex IL-RE valve relay has battery backup.

Yes, if it matches the alarm's radio. The Hikvision DS-PDWL-E-WE is a waterproof wireless detector for AX PRO panels, the Dahua DHI-ARD912-W2(868D) covers plumbing, baths, sinks, washing machines and dishwashers with adjustable sensitivity, and the Pyronix WL-CABLE probe turns an MC1Z1-WE wireless contact into a leak sensor.

Sensing cable under the raised floor, wired to a panel that alerts the building system. Vimpex Identi-Leak cable such as the IL-WDC-05 covers large areas, and the IL-ZBC-01 zone breaker cable carries the loop across doorways without detecting. The Winland M-001-0137 WaterBug 200 suits computer rooms and document stores, takes up to 6 sensors and can also detect an absence of water.

Yes, the Winland EA400-24 EnviroAlert monitors up to 4 environmental factors, including temperature, humidity and water detection, and can report through a security panel. The Acre V54538-F118-A200 is a two-way wireless flood detector that also senses temperature, for kitchens, bathrooms, warehouses or yachts.

On the floor, in a drip tray or at a set height. The Vimpex HS-WLDP Hydrosense probe has an adjustable height and a 1m flying lead, Hochiki offers a tray mounting kit (1600150-00) and a height adjustment kit (1600160-00), and the Vimpex HY-WLDP-C plastic-coated steel cage stops a Hydrosense probe being knocked or moved.