EM500-LGT LoRaWAN® Light Intensity Sensor

Milesight EM500-LGT is an industrial LoRaWAN® light intensity sensor designed for agriculture, horticulture, and environmental monitoring projects. Measuring 0–100,000 lux with ±3% accuracy, this device delivers reliable outdoor performance thanks to its IP67 rating in harsh conditions. Part of the Milesight EM500 series, the EM500-LGT offers standard compatibility with LoRaWAN® gateways and network servers.

Key features

• Wide measurement range: 0–100,000 lux, ±3% accuracy, 1 lux resolution
• Fast response time: 1-second detection of light intensity changes
• IP67 rating: Durable in outdoor and harsh environments
• LoRaWAN® based: Compatible with standard LoRaWAN® gateways and network servers
• Long battery life: Up to 10 years of continuous operation with easily replaceable batteries
• NFC configuration: Easy setup via mobile phone or PC
• Multi-frequency support: CN470, IN865, RU864, EU868, US915, AU915, KR920, AS923
• Data management: Automatic triggers, real-time alerts, threshold alarms

Benefits

• Low power consumption: LoRaWAN® technology reduces battery replacement frequency
• Extended transmission range: Up to 2 km in urban areas, 15 km in rural areas
• Easy installation: Wall, pole, or DIN rail mounting options; quick configuration via USB Type-C and NFC
• Milesight IoT Cloud integration: Data visualization dashboard, automatic triggers, real-time alerts, and mobile app support (Android/iOS)
• Low maintenance: Easily replaceable batteries, reduced wiring costs
• Rugged design: Ultra-robust enclosure for demanding environments

Use cases

• Agriculture and horticulture: Monitor optimal light conditions for crop growth
• Greenhouses and floriculture: Light intensity control for yield optimization
• Security systems: Light-based security applications
• Lighting control: Automated light management and energy savings

Technical notes

The device operates in OTAA/ABP modes within LoRaWAN® Class A. It features an internal antenna with transmission power of 16 dBm (868 MHz), 20 dBm (915 MHz), and 19 dBm (470 MHz). For precise light measurement, it provides 1 lux resolution and ±3% accuracy. An LED indicator allows monitoring of device status.