Milesight - WS202
PIR & Light Sensor

The Milesight WS202 PIR and Light Sensor is a motion and occupancy detector to sense presence levels in any room. The combination of PIR detection and light sensors enables the detection of the occupancy and vacancy levels of offices and rooms. Ensure optimal lighting conditions in any environment with the precise measurement from the high resolution 1 lux sensor. Identify movement within 8 metres and send real-time changes via LoRaWAN. Utilise a cloud solution to monitor alarms of the occupancy of rooms from any location. Common use cases include smart homes, offices, schools and warehouses.

Create a smart environment by combining the WS202 with other Milsight Smart Switches to automatically turn on and off lights whenever anyone enters or leaves a room, saving electricity costs. The WS202 has a data transmission range of 15 km in rural areas and 2 km in urban environments. This makes the Milesight PIR and Light Sensor compatible with various industry-standard LoRaWAN gateways. The Milesight D2D (Device to Device) protocol using LoRaWAN enables direct communication without needing a gateway.


  • Convenient size for easy installation
  • Built-in light sensor and PIR sensor
  • Smart brightness measurement
  • Equipped with NFC for easy configuration


Physical Characteristics
Dimensions50 mm x 50 mm x 23.8 mm
InstallationOn flat surfaces with screws or 3M tapes
Environmental Characteristics
Operating Temperature-30ēC to +60ēC
Relative Humidity<=95% (non-condensing)
Ingress ProtectionIP30
Battery1 × 1650 mAh ER14335 Li-SOCl2 battery
Battery LifeUp to 4 years
Power On/OffNFC
Sensor Characteristics
PIR Detection Area120° Horizontal, 100° Vertical
PIR Detection DistanceMaximum 8 metres
Light StatusBright / Dark (Determine 1-60000 lux as Bright or Dark)
Wireless Characteristics
TechnologyLoRaWAN, LoRa D2D
Tx Power16 dBm (868) / 22 dBm (915) / 19 dBm (470)
Sensitivity-137dBm @300bps
ModeOTAA/ABP Class A
Configuration Interface
NFCPower On/Off, configure with Mobile App

Ordering Information and Pricing
Part Number Model Number Description RRP
[A] Milesight WS202 LoRaWAN PIR & Light Sensor
WS202-915M WS202 LoRaWAN D2D Sensor Node, PIR & Light Sensor, NFC, IP30 $132.00 A