The Milesight EM500-LGT is a rugged LoRaWAN light sensor designed to monitor illuminance levels in harsh outdoor environments in real time. Built for smart agriculture, urban lighting, and greenhouse control, it delivers reliable long-range data transmission up to 10 km line of sight using the LoRaWAN protocol – ideal for field deployments, smart buildings, and weather monitoring applications across Africa.
Unlike solar or rechargeable variants, the EM500-LGT is powered by a built-in 19,000 mAh replaceable Li-SOCl₂ battery – delivering up to 10 years of operation without replacement. A true set-and-forget solution, built for long-term outdoor deployment in the most demanding environments.
A single sensor. One critical measurement:
The EM500-LGT measures illuminance with wide-range, high-precision accuracy from a single outdoor-rated unit – giving agronomists, facility managers, and field operators a complete picture of light conditions without multiple devices or complex wiring.
- Illuminance Range: 0–100,000 lux | Accuracy: ±3% | Resolution: 1 lux
Key Features:
- Wide measuring range of 0–100,000 lux with high precision at ±3% accuracy
- Ultra-long battery life – up to 10 years on a single 19,000 mAh replaceable battery
- Long-range LoRaWAN communication up to 10 km line of sight
- IP67 waterproof transceiver and IP65 light sensor for harsh outdoor environments
- NFC-enabled for easy field configuration via mobile app
- Stores up to 1,000 data entries locally with retransmission support
- Supports threshold alarms for proactive light level monitoring
- Compatible with standard LoRaWAN gateways and network servers
- Multi-region frequency support: EU868, US915, AU915, AS923 and more
The EM500-LGT provides real-time light intelligence that helps improve crop yield, energy efficiency, and environmental awareness across any outdoor deployment scale.
Smart light monitoring starts with accurate data – measure what matters most with the Milesight EM500-LGT.
Need a gateway too? Pair it with the Milesight UG67 Outdoor LoRaWAN Gateway for a complete long-range light monitoring solution across your entire site or farm.
Check out the Milesight EM500-LGT Light Sensor User Online Manual.
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