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