EM500-LGT – LoRaWAN Light Sensor for Outdoor Applications – Milesight
 General Description
 The Milesight EM500-LGT is a light sensor designed for demanding outdoor environments. It accurately measures light intensity up to 100,000 lux and transmits data via the LoRaWAN® protocol, enabling reliable, low-power remote monitoring. Its built-in 19,000 mAh battery provides up to 10 years of battery life. The EM500-LGT is ideal for applications such as smart agriculture, urban lighting, or greenhouse control, and integrates easily with the Milesight IoT Cloud solution.
 Targeted Applications
-  Connected agriculture
 
 - Smart public lighting
 
-  Greenhouse control
 
-  Smart buildings
 
-  Environmental monitoring
 
-  Management via Milesight IoT Cloud platform
 
 Highlights
-  Wide light range measurement (0–100,000 lux) with high accuracy
 
-  Long-range LoRaWAN transmission up to 10 km line-of-sight
 
-  Protection rating IP67 (transmitter) / IP65 (sensor)
 
-  Replaceable 19000 mAh battery with 10 years of battery life
 
-  Simple setup via NFC or USB Type-C port
 
-  Compatible with all standard LoRaWAN gateways
 
-  Easily integrated with Milesight IoT Cloud
 
 Technical Specifications 
|  Transmission | 
|  Technology | 
 LoRaWAN® | 
|  Supported frequencies | 
 CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923 | 
|  Transmit power | 
 16 dBm (868 MHz), 20 dBm (915 MHz), 19 dBm (470 MHz) | 
|  Sensitivity | 
 -137 dBm @300bps | 
|  Fashion | 
 OTAA / ABP – Class A | 
|  Light Sensor | 
|  Measuring range | 
 0 to 100,000 lux | 
|  Precision | 
 ±3% | 
|  Resolution | 
 1 lux | 
|  Interfaces and Connectors | 
|  Switching on/off | 
 NFC, internal button | 
|  Configuration | 
 Mobile app (NFC) or PC software via USB Type-C | 
|  Cable length | 
 3 m | 
|  Physical Characteristics | 
|  Food | 
 Li-SOCL2 battery 19000 mAh (ER34615) | 
|  Autonomy | 
 Up to 10 years (10 minute interval) | 
|  Operating temperature | 
 -30°C to +60°C | 
|  Relative humidity | 
 0% to 100% (non-condensing) | 
|  Protection index | 
 IP67 (transmitter) / IP65 (sensor) | 
|  Dimensions | 
 Transmitter: 105.4 × 71 × 69.5 mm  Sensor: 64 × 58 × 34 mm | 
|  Facility | 
 Wall, pole or DIN rail mounting | 
 Interfaces and Connectors
 The EM500-LGT is easily configured via NFC or USB Type-C. It comes with a 3-meter cable connecting the sensor to the transmitter module for flexible installation in outdoor environments.
 Pack Contents
-  1 × Milesight EM500-LGT Light Sensor
 
-  1 × Built-in battery
 
-  1 × 3 meter sensor cable
 
-  1 × Wall/Pole/DIN Rail Mounting Kit
 
-  1 × Quick Installation Guide