Motion & Temperature/Humidity Sensor WS203 – Milesight WS203

The Milesight WS203 combines PIR motion sensing with high-precision temperature and humidity monitoring in a single LoRaWAN device. It’s designed for indoor deployments where you want both environmental data and activity context—useful for occupancy-aware HVAC strategies, comfort monitoring, and operational efficiency in smart buildings.

Motion detection covers a wide field of view and can be tuned using different PIR covers to better fit the monitored area (desks, meeting zones, corridors) and reduce unwanted triggers. For data reliability, the WS203 supports on-device storage (1,000 entries) and retransmission, helping ensure measurements are available even if network conditions fluctuate. It also supports Milesight D2D for direct interaction with compatible Milesight nodes (depending on your setup) when low-latency local actions are required.

Typical deployments: offices, meeting rooms, schools, hotels, corridors, plant rooms, and any indoor space where temperature/humidity insight plus motion-based automation improves comfort and energy performance.