LoRaWAN® EM300-DI Dry Contact & Temperature Sensor – Milesight
General Description
Milesight 's EM300-DI is a versatile LoRaWAN® device that enables dry contact monitoring of digital inputs, as well as temperature and humidity measurement. Its integrated GPIO interface makes it compatible with passive pulse meters (e.g., reed meters). Its IP67-rated waterproof design, NFC configuration, and long battery life make it ideal for industrial or outdoor environments.
Targeted Applications
- Remote reading of pulse meters (water, gas, electricity)
- Contact status monitoring (doors, flaps, etc.)
- Environmental control in industrial environments
- Long-range LoRaWAN® deployment in wet or dusty areas
Highlights
- GPIO digital input compatible with dry contact / pulses
- Integrated temperature and humidity measurement
- IP67 protection rating for outdoor use
- Up to 5 years of battery life
- Simple configuration by NFC via smartphone
Technical Specifications
Transmission |
Technology |
LoRaWAN® |
Supported frequencies |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
Transmit power |
16 dBm (868 MHz), 20 dBm (915 MHz), 19 dBm (470 MHz) |
Sensitivity |
-137 dBm @ 300bps |
Fashion |
OTAA / ABP – Class A |
Measurements & Interfaces |
GPIO |
1 × dry contact interface – pulse mode or digital input |
Cable |
1 m (customizable) |
Compatibility |
Flexible reed or passive pulse meters |
Temperature |
-30°C to +70°C, ±0.3°C (0 to +70°C), ±0.6°C (-30 to 0°C), resolution 0.1°C |
Humidity |
0% to 100% RH, ±3% (10-90%), ±5% (out of range), resolution 0.5% RH |
Operation & Configuration |
Ignition / Extinction |
Internal button, configuration via NFC |
Configuration |
NFC mobile application |
Physical Characteristics |
Food |
1 × ER18505 battery (4000 mAh), expandable to 2 batteries |
Autonomy |
Up to 5 years (10 min interval) |
Operating temperature |
-30°C to +70°C |
Relative humidity |
≤ 95% (non-condensing) |
Material / Color |
ABS + PC, white |
Protection index |
IP67 |
Dimensions |
105.6 × 85.2 × 27 mm |
Facility |
Screw mounting |
Interfaces and Connectors
The EM300-DI sensor has a GPIO interface for digital or pulse input. It does not have physical transmission connections; communication is via LoRaWAN®.
Pack Contents
- 1 × EM300-DI Milesight Sensor
- 1 × 1m GPIO Cable
- 1 × ER18505 Battery (Pre-installed)
- 1 × Wall Mounting Kit (Screws)
- 1 × Quick Start Guide