WS203 – LoRaWAN PIR, Temperature and Humidity Sensor – Milesight
General Description
Milesight 's WS203 is a 3-in-1 sensor combining motion detection (PIR), temperature, and humidity. Communicating via LoRaWAN® and Milesight D2D, it provides high-precision environmental and presence monitoring. Its compact design offers up to 5 years of battery life thanks to a 4000 mAh battery. Easy to configure via NFC, it also integrates data storage and forwarding functions for reliable connected environments.
Targeted Applications
- Occupancy and ambient comfort monitoring
- Intelligent heating and ventilation management
- Access control and energy optimization
- Smart buildings, hotels, offices
Highlights
- PIR detection up to 6 m with wide field (120°H / 100°V)
- Accurate temperature measurement ±0.2°C
- Humidity measurement ±2% RH, 0 to 100%
- Local data storage and LoRaWAN retransmission
- Configuration via NFC, integrated D2D protocol
- Battery life up to 5 years with 4000 mAh battery
- Screw or tape installation, discreet design
Technical Specifications
Transmission |
Technology |
LoRaWAN®, Milesight D2D |
Supported frequencies |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
Transmit power |
16 dBm (868 MHz), 20 dBm (915 MHz), 19 dBm (470 MHz) |
Sensitivity |
-137 dBm |
Fashion |
OTAA / ABP – Class A |
Integrated Sensors |
PIR detection |
Range: up to 6 m Field of vision: 120° H / 100° V |
Temperature |
Range: -20°C to +60°C Accuracy: ± 0.2 °C Resolution: 0.1 °C |
Humidity |
Range: 0% to 100% RH Accuracy: ± 2% RH Resolution: 0.5% RH |
Configuration and Functions |
Button |
1 internal button (power / reset) |
LED |
1 status indicator |
Configuration |
Via NFC (mobile application) |
Advanced functions |
D2D Controller, data storage and retransmission |
Physical Characteristics |
Food |
1 × ER18505 Li-SOCl2 4000 mAh battery |
Autonomy |
Up to 5 years (30 min + 64 triggers/day at 25°C) |
Operating temperature |
-20°C to +60°C |
Relative humidity |
0% to 95% (non-condensing) |
Protection index |
IP30 |
Dimensions |
73 × 73 × 26 mm (without PIR cover) |
Material / Color |
PC + flame retardant ABS, white + gray |
Facility |
Wall mounting by screws or 3M adhesive tape |
Interfaces and Connectors
The WS203 includes an internal button for power or reset, an LED status indicator, and is easily configured via NFC with a dedicated mobile app.
Pack Contents
- 1 × Milesight WS203 3-in-1 Sensor
- 1 × Built-in 4000mAh battery
- 1 × Wall Mounting Kit (Screws + Adhesive)
- 1 × Quick Installation Guide