WS201 – Compact and accurate LoRaWAN ToF distance sensor – Milesight
General Description
Milesight 's WS201 is a compact Time of Flight (ToF) distance sensor designed for high-precision proximity and presence detection. It measures distances from 1 to 55 cm with an accuracy of ±1 cm and a resolution of up to 1 mm depending on the range. With its LoRaWAN® connectivity, ultra-compact form factor, simple adhesive mounting, and 2-year battery life, it is ideal for residential, commercial, or technical environments where short-range measurement is required.
Targeted Applications
- Short-range presence detection
- Level monitoring in small containers
- Access control or discreet passage
- Occupancy counting or indoor automation
Highlights
- Time of Flight (ToF) technology for non-contact measurement
- Detection from 1 to 55 cm with accuracy ±1 cm
- Resolution up to 1 mm depending on detection range
- Low-power LoRaWAN® transmission
- CR2450 battery – battery life up to 2 years
- Quick setup via mobile NFC
- 3M adhesive tape installation – ultra-compact design
Technical Specifications
Transmission |
Protocol |
LoRaWAN® |
Supported frequencies |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
Transmit power |
16 dBm (868 MHz), 22 dBm (915 MHz), 19 dBm (470 MHz) |
Sensitivity |
-132 dBm @300bps |
Fashion |
OTAA / ABP – Class A |
Distance Measurement (ToF) |
Field of view (FoV) |
25° ±5° |
Detection range |
1 to 55 cm |
Precision |
±1 cm |
Resolution |
1 mm (1.0 to 15.0 cm) 2 mm (15.0 to 35.0 cm) 3 mm (35.0 to 55.0 cm) |
Interfaces and Connectors |
Button |
1 reset button (internal) |
LED indicator |
1 status LED (internal) |
Configuration |
Mobile app via NFC |
Physical Characteristics |
Food |
1 × CR2450 lithium battery 590 mAh |
Autonomy |
Up to 2 years |
Operating temperature |
-10°C to +60°C |
Relative humidity |
0% to 95% (non-condensing) |
Protection index |
IP30 |
Material / Color |
ABS + PC flame retardant, white |
Dimensions |
66 × 38 × 12 mm |
Facility |
Mount on flat surface with 3M adhesive tape |
Guarantee |
2 years |
Interfaces and Connectors
The WS201 features an internal reset button, a built-in LED indicator, and is easily configured via NFC with the Milesight mobile app.
Pack Contents
- 1 × Milesight WS201 Distance Sensor
- 1 × Built-in CR2450 battery
- 1 × 3M adhesive mounting tape
- 1 × Quick Start Guide