The Milesight EM300-TH is a compact LoRaWAN temperature and humidity sensor designed to monitor environmental conditions in real time. Built for both indoor and outdoor applications, it delivers reliable long-range data transmission up to 10 km line of sight using the LoRaWAN protocol – ideal for offices, hospitals, factories, greenhouses, and field deployments across Africa.
Unlike solar or rechargeable variants, the EM300-TH is powered by a built-in 4,000 mAh replaceable Li-SOCl₂ battery – delivering over 10 years of operation without replacement on SF7. An optional 8,000 mAh version is also available for extended deployments. A true set-and-forget solution, built for long-term monitoring in the most demanding environments.
A single sensor. Two critical measurements:
The EM300-TH measures the two most important environmental comfort indicators from a single compact unit – giving facility managers and field operators a complete picture of ambient conditions without multiple devices or complex wiring.
- Temperature Range: -30°C to +70°C | Accuracy: ±0.3°C (0°C~70°C)
- Humidity Range: 0–100% RH | Accuracy: ±3% RH (10%~90% RH)
Key Features:
- Measures Temperature and Humidity simultaneously using Sensirion high-precision sensor chip
- Ultra-long battery life – over 10 years on a single 4,000 mAh replaceable battery (SF7)
- Long-range LoRaWAN communication up to 10 km line of sight
- IP67 UV-resistant and waterproof enclosure for harsh indoor and outdoor environments
- NFC-enabled for easy configuration via mobile app
- Stores up to 2,800 data entries locally with retransmission support
- Supports threshold alarms and Milesight D2D direct device control without a gateway
- Compatible with standard LoRaWAN gateways and network servers
- Multi-region frequency support: EU868, US915, AU915, AS923 and more
The EM300-TH provides real-time environmental intelligence that helps improve comfort, compliance, and operational efficiency across any space or deployment scale.
Smart environment monitoring starts with accurate data – track what matters most with the Milesight EM300-TH.
Need a gateway too? Pair it with the Milesight UG65 Indoor LoRaWAN Gateway for a complete long-range environmental monitoring solution across your entire facility or site.
Check out the Milesight EM300-TH Temperature & Humidity Sensor User Online Manual.
Reviews
There are no reviews yet.