Leak Detection Sensor LoRaWAN | Milesight EM300-SLD
- EM300-SLD/ZLD is suitable for detecting the presence of water and remotely alerting users to potential water leak, water spillage, or floor wetness. It supports water or other conductive liquids leak detection when liquid levels reach 5mm.










Wireless Transmission
Technology
LoRaWAN
Frequency
CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923
Tx Power
16dBm(868)/20dBm(915)/19dBm(470)
Sensitivity
-137dBm @300bps
Mode
OTAA/ABP Class A
Measurement
Humidity
Resolution
0.5% RH
Accuracy
10% to 90% RH (+/- 3%), below 10% and above 90% RH (+/- 5%)
Range
0% to 100% RH
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
Leakage Detection
Trigger Condition
When liquid level reaches 5mm
Detection Cable
EM300-SLD: 1.5m/ EM300-ZLD: 3m (Customizable)
Operation
Power On & Off
NFC, Power Button (Internal)
Configuration
NFC Configuration via Mobile App
Physical Characteristics
Installation
Wall Mounting
Dimension
105.6 × 85.3 × 27 mm
Ingress Protection
IP67
Relative Humidity
0% to 100% (non-condensing)
Operating Temperature
-30°C to +70°C
Battery Life
Up 10 years (10 min interval + 24 triggers per day)
Power Supply
1 × 4000 mAh ER18505 Li-SOCL2 battery (extendable to 2 batteries)
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