User manual for Milesight EM300 environmental monitoring sensors covering setup, configuration, safety, and cloud management.
The EM300 series includes temperature‑humidity, door‑magnet, and leak‑detection sensors designed for outdoor use. They feature an IP67 waterproof housing, low‑power operation with large 4000/8000 mAh batteries, and support LoRaWAN and NB‑IoT connectivity.
The manual provides safety guidelines, hardware overview, NFC and LoRaWAN configuration steps, data communication protocol details, and instructions for managing devices via the Milesight Cloud platform. This manual is written in Chinese.
| Protection rating | IP67 |
|---|---|
| Maximum communication distance (open environment) | 11 km |
| Battery capacity | 4000 mAh / 8000 mAh |
| Battery life | 5+ years |
| Default password | 123456 |
| Factory reset method | Long press power button >10 s |
| Supported temperature unit | Celsius only |
| LoRaWAN Device EUI | Unique identifier on product label |
| Firmware version example | V1.14 |
The default password is 123456.
Long press the power button for more than 10 seconds.
The sensor can communicate up to 11 km in open areas.
It is rated IP67 for water and dust protection.