Milesight WS203 LoRaWAN Motion, Temperature & Humidity Sensor

The Milesight WS203 is a compact and versatile environmental monitoring sensor designed for smart buildings, offices, healthcare environments and industrial applications. By combining PIR motion detection with temperature and humidity measurement, the WS203 provides real-time insights into both occupancy and indoor climate conditions.

Using LoRaWAN® technology, the sensor ensures reliable long-range wireless communication with low power consumption. This makes it ideal for large-scale deployments where stable connectivity and minimal maintenance are essential.

When motion is detected, the WS203 can trigger environmental measurements and transmit data to your IoT platform or building management system. This allows for intelligent control of HVAC systems, optimizing comfort while reducing energy consumption.

The integrated high-precision temperature and humidity sensor ensures accurate monitoring of indoor conditions, while the PIR sensor detects movement of people or animals within a wide coverage area.

In addition, the WS203 features local data storage and retransmission, preventing data loss during network interruptions.

Thanks to its easy installation, long battery life and flexible configuration, the WS203 is a reliable solution for continuous indoor environmental monitoring and occupancy-based control.

Key features

• Motion detection using PIR technology
• Combined temperature and humidity monitoring
• LoRaWAN® wireless communication for long-range connectivity
• High measurement accuracy
• Adjustable detection angle via PIR covers
• Local data storage with automatic retransmission
• Ultra-low power consumption (up to ~5 years battery life)
• Easy installation (wall mounting or adhesive)
• NFC configuration via mobile app
• Supports Milesight D2D communication

Typical applications

• Smart buildings and offices
• HVAC control based on occupancy
• Hospitals and healthcare environments
• Laboratories and controlled environments
• Meeting rooms and space utilization monitoring
• Energy-saving lighting and climate control

Why choose Pedak?

At Pedak, we go beyond supplying sensors. We provide complete measurement solutions, including advice, installation support and calibration services. With our expertise in indoor climate monitoring and IoT systems, we help you turn measurement data into reliable insights and long-term performance.