Description
Prevent water damage with the Milesight EM300-SLD/ZLD water leak sensors.
Offering a reliable performance to detect presence of water or other liquids, these leak detection sensors are available in two different variants to suit your installation environments. The EM300-SLD water leak sensor has a probe attachment, whereas the EM300-ZLD is a rope sensor.
Ideal for applications such as hospitals, warehouses and server rooms, using LoRaWAN® to detect water leaks can help to prevent costly damages to your premises and equipment.
Features
- Detect the presence of liquids by a small water probe or rope detection sensor
- Embedded with temperature and humidity sensors for added environmental monitoring
- IP67 rated waterproof casing, suitable for use in harsh environments
- Built-in 4000 mAh replaceable battery which provides up to 5 years battery life
- Equipped with NFC for easy configuration
We can supply third-party online wireless sensor monitoring and notification system to view data and set alerts via SMS text and email.
Ask us about our zero-touch provisioning service, this sensor can be supplied pre-configured and ready to go.
Parameters
Electric:
Input Power | 1 × 4000 mAh ER18505 Li-SOCL2 battery (extendable to 2 batteries) |
Battery Life Time | Up to 5 years |
Measurement (Leak Detection):
Trigger Condition | When liquid level reaches 5mm |
Cable Length | 1.5m (customisable) |
Measurement (Temperature):
Range | -30°C to 70°C |
Accuracy | 0°C to 70°C (+/- 0.3°C), -30°C to 0°C (+/- 0.6°C) |
Resolution | 0.1°C |
Measurement (Humidity):
Range | 0% to 100% RH |
Accuracy | 10% to 90% RH (+/-3%), below 10% and above 90% RH (+/- 5%) |
Resolution | 0.5% RH |
Key documents & information
- Milesight EM300-SLD Water Spot Leak Sensor Datasheet
- Milesight EM300-ZLD Water Rope Leak Sensor Datasheet
- Milesight EM-300 Series User Guide
All of our products are available to customers throughout Europe. For more information on shipping costs, currency conversions and lead times, please contact our technical team.
Our technical team are also happy to advise customers on the best LoRaWAN® water leak sensors for their specific applications on an individual project basis.

Speak to the team
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