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Milesight EM300-SLD - Leak detection sensor (spot)

Original price £60.00 - Original price £60.00
Original price
£60.00 - £60.00
Current price £60.00
SKU EM300-SLD-868M

Leak detection sensor using a spot sensor, with built-in temperature and humidity monitoring.

The EM300 is rated to IP67 and is both UV and water resistant, perfect for use in harsh environments, but equally suitable for indoor use.

The EM300 has a built-in 4000mAh battery boasting a 5-year battery life. The device is a LoRaWAN IoT sensor with a range of up to 10KM in optimal conditions.

Product details
  • 1.5m Leak detection sensor
  • Temperature
  • Humidity
  • LoRaWAN Radio
  • EU868MHz (For UK/EU markets)
  • Tx Power: 16dBm(868)/20dBm(915)/19dBm(470)
  • Sensitivity: -147dBm @ 300bps
  • Mode: OTAA/ABP Class A
  • Other frequencies available (CN470/RU864/IN865/EU868/US915/AU915/KR920/AS923)


  • Battery: 1 x 4000mAh ER18505 Li-SOCL2 battery (extendable to 2 batteries)
  • Battery-Life: 5 years (10min interval, 1 x alarm, SF10)
  • Dimensions: 105.6 × 85.3 × 27 mm (4.16 × 3.36 × 1.06 in)
  • Installation: Wall mounting
  • Protection: IP67
  • NFC support and USB Type-C port for programming

Sensor specification


  • Range: -20°C to +70°C
  • Accuracy: 0°C to + 70°C (+/- 0.3°C), -20°C to 0°C (+/- 0.6°C)
  • Resolution: 0.1°C


  • Range: 0-100% RH
  • Accuracy: 10% to 90% RH (+/- 3%), below 10% and above 90% RH (+/- 5%)
  • Resolution: 0.5% RH

Leakage detection

  • Trigger condition: When liquid level reaches 5mm
  • Detection cable: 1.5m (this can be customised)


  • Datacentre leak detection
  • Server room leak detection 
  • Air conditioning, water pipe and chilled water leak detection
  • Manufacturing
  • Private dwellings (unoccupied)
  • Holiday homes
  • Plant rooms


The sensors use a LoRaWAN radio network so you need to ensure your building is covered by a LoRaWAN network. MTG also sell LoRaWAN gateways here, or you can talk to us about our LoRaWAN network services.


Using the Milesight IoT Cloud solution, users can view and manage sensor data, create riggers and receive alerts/notifications by e-mail and a mobile app.