EM300SLD Milesight sensor front view

LoraWan Connected Point Leak Detection Sensor - EM300-SLD-868M

Milesight WS303 mini sensor front view

LoRaWan Mini Leak Detection Sensor - WS303-868M

LoraWan Connected Zone Leak Detection Sensor - EM300-ZLD-868M

From €106.80 €89.00

To €142.80 €119.00

The ultra-compact LPWAN sensor detects leaks by zone, pinpointing the presence of water or other liquids over a large area. This IP67 device contains temperature and humidity sensors, and has a battery life of up to 10 years.

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1 x LoraWan zone leak detection sensor   + €106.80 €89.00

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Milesight EM300ZLD sensor front view
LoraWan Connected Zone Leak Detection Sensor - EM300-ZLD-868M

In stock

€106.80 €89.00


    LoraWan Zone Leak Detection Sensor


    The EM300-ZLD sensor, with a battery capacity of 4,000 mAh, can detect leaks by zone over a wide area, warning you of potential damage. The leak detection sensor is equipped with temperature and humidity sensors for extensive use in various industrial applications.

    Use cases :

    Control of storage areas to prevent environmental and safety damage caused by liquid leaks

    Protection of flood-prone areas such as rivers, ponds or coastal zones, to avoid the risk of overflows

    Monitoring agricultural irrigation systems by installing the sensor along irrigation canals or sprinkler systems to detect potential leaks

    Product benefits :

    • IP67 waterproof and UV-resistant casing 

    • 5-year battery life (10 years if you add an extra)

    • Long-distance transmission with line-of-sight of up to 10 km

    • Built-in temperature and humidity sensors for environmental monitoring

    • Equipped with NFC technology for easy configuration

    • Quick and easy management with Telemesure.net IoT Cloud solution

    IoT Data Management Platform :

    This device is combined with our cloud-based data supervision solution Telemesure.net. Users can view and manage all their measurement data remotely, and receive real-time alerts or notifications via a browser or cell phone.

    Questions and Answers :


    • What is the EM300-ZLD leak detection sensor?

    The EM300-ZLD is a compact sensor designed to detect the presence of liquids over a large area, using the conduction principle.

    • How does the EM300-ZLD trigger leak detection?

    The sensor triggers an alarm when the liquid level reaches 5 mm, thanks to its customized 3-meter sensing cable.

    • Is the EM300-ZLD suitable for harsh industrial environments?

    Yes, the sensor is designed with a robust IP67 housing, UV-resistant, waterproof and capable of operating in environments with temperatures ranging from -30°C to +70°C and humidity from 0% to 100%.

    • What are the physical dimensions of the EM300-ZLD?

    The sensor measures 105.6×85.3×27 mm (4.16×3.36×1.06 inches), making it compact and easy to install via wall mounting.

    • What type of battery does the EM300-ZLD use, and how long does it last?

    The sensor uses a 4000mAh Li-SOCL2 ER18505 battery, expandable to two batteries, offering a service life of over 5 years under typical operating conditions.

    • Is the EM300-ZLD sensor compatible with cloud solutions?

    Yes, it is compatible with the Telemesure.net data management platform. Users can manage sensor data remotely and receive alerts via a mobile application.

    Product features :

    Brand: Milesight

    Color: white/gray

    Battery capacity (Li-SOCl2): 4,000 mAh

    Protection rating: IP67

    Trigger condition: when liquid level reaches 5 mm

    Operating temperature: -30°C to +70°C

    Relative humidity: 0% to 100% (non-condensing)

    Compatible with: standard LoRaWAN® gateways and network servers

    Cable length: 3 m (customizable)

    Installation: wall-mounted

    Product content :

    • 1x EM300-ZLD Sensor 

    • 1x Perimeter liquid leak detector cable

    • 2x Wall mounting kits

    • 3x Mounting brackets

    • 1x Warranty card

    • 1x Quick Start Guide


    For more information about this product, please contact us. Our technicians will be happy to help you implement your project.


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    Country of ManufactureChina