Leak Detection Sensor with Sensing Cable EM300-ZLD 868 – Milesight (LoRaWAN)

The Milesight EM300-ZLD 868 is the cable/rope-type leak sensor designed to cover larger areas or longer leak-prone zones. The 3 m sensing cable is laid along floors, under pipes, or around equipment where leaks may appear at different points. When conductive liquid is detected and reaches a 5 mm level, the device triggers an alarm and reports over EU868 LoRaWAN.

In addition to leak detection, EM300-ZLD includes temperature and humidity sensing to log site conditions—useful for damp technical rooms, pits, and cabinets where environmental changes often precede incidents.

For real deployments, it includes threshold alarms, on-device storage (2,800 entries), data retrievability, and retransmission to preserve event history during temporary network issues. Setup is done via NFC (mobile app) or downlink. It also supports Milesight D2D for direct device-to-device actions when required.

Concrete deployment examples:

Server rooms and technical rooms (AC condensate, pumps, pipe runs)

Building services and boiler rooms

Industrial equipment and water treatment areas

Basements, pits, and hard-to-access spaces

Utility rooms and storage areas with leak-prone lines (conductive liquids)