WS203 Motion & TH Sensor

WS203 Motion & TH Sensor

The Milesight WS203 is an environmental monitoring device that combines motion and temperature/humidity (TH) sensors. By detecting motion within an 8-meter range based on passive infrared(PIR) technology, the WS203 Motion & TH Sensor can trigger TH detection and periodically report environmental status over LoRaWAN® network. With easy configuration and wireless detection, the WS203 offers a reliable and convenient solution for space and TH optimization. Compatible with Milesight LoRaWAN® gateway and IoT Cloud platform, it enables real-time monitoring of occupant status for effective remote management.

WS203 Motion & TH Sensor can find applications in various settings including smart offices, buildings, hospitals, and more.

Ultimate Motion, Temperature
and Humidity Sensor

WS203 is a wireless environmental monitoring sensor detecting the motion of humans or animals, surrounding temp and humidity. It ensures the indoor environment at a preset comfort level via pairing with HVAC system if motions are being detected, which is a huge energy saver and brings much comfort.

Sensitive Motion Detection

WS203 can detect motions of humans or animals Sensitively at wide coverage up to 120° horizontal and 100° vertical within 6 meters based on passive infrared (PIR).

High-Precision Temperature
and Humidity Detection

Built-in high-precision TH sensor ensures accurate monitoring of temperature and humidity in the air, detecting changes in real-time.

High Data Integrity with
Storage and Retransmission

WS203 can store up to 1000 sets of historical data records with time stamps. When the connection fails, WS203 will continue to collect and store environment data. Once reconnected, the data collected during that period will be retransmitted to the gateway, thus avoiding data loss.

Milesight D2D
Communication

Milesight D2D (Device to Device) communication protocol featuring LoRa® enables communication among different Milesight LoRaWAN® node devices without a LoRaWAN® gateway.

• Lower Latency
• Less than 1 Second Response Time
• Secure Transmission
• Reduce Investment Cost

NFC Configuration

Switching On/Off & Configuring the Devices Wirelessly

1^st Step

Install the
Milesight ToolBox

2^nd Step

Enable NFC and run ToolBox,
then attach your phone to the device

3^rd Step

Verify the password
and start configuring

• Equipped with passive infrared and Fresnel Lens for motion or occupancy detection
•  Built-in high-accurate TH sensor along with PIR sensor enabling communicative triggers
•  Provide different types of PIR covers for adjustable and flexible field angles and different detecting ranges
•  V0 grade flame retardant material makes it adaptable to various scenarios, enhancing safetyand reliability
•  Store locally 1000 historical records and support retransmission to prevent data loss
•  Equipped with NFC for one touch configuration and support card emulation mode
•  Function well with standard LoRaWAN® gateways and network servers
•  Compatible with Milesight IoT Cloud
• Support Milesight D2D protocol to enable ultra-low latency and direct control without a gateway

Wireless Transmission
Technology LoRaWAN®, Milesight D2D
Frequency CN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4
Tx Power 16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity -137 dBm
Mode OTAA/ABP Class A
Measurement
PIR
Detection Area 120 ° Horizontal, 100 ° Vertical
Detection Distance Maximum 6 m
Temperature
Range -20°C ~ 60°C
Accuracy ± 0.2°C
Resolution 0.1°C
Humidity
Range 0% ~ 100% RH
Accuracy ± 2% RH
Resolution 0.5% RH
Others
Button 1 x Power/Reset Button (Internal)
LED Indicator 1 × Status Indicator
Configuration NFC Configuration via Mobile App
Advanced Feature Milesight D2D Controller, Data Storage, Data Retransmission
Physical Characteristics
Power Supply 1 × 4000 mAh ER18505 Li-SOCl2 Battery
Battery Life* Up to 5 years (30 min Interval + 64 Triggers per Day, 25°C)
Operating Temperature -20°C to +60°C
Relative Humidity 0 to 95% (Non-condensing)
Dimension 73 x 73 x 26 mm ( 2.87 x 2.87 x 1.02in) (Without PIR Cover)
Ingress Protection IP30
Color & Material White + Grey, PC + ABS (Flame Retardant)
Installation 3M Tape Mounting, Wall Screw Mounting

* Tested under laboratory conditions and for guideline purposes only.