Milesight - VS121
AI Workplace Sensor

The Milesight VS121 AI Workplace Sensor is a motion detector that senses room occupancy based on Artificial Intelligence (AI) with a 95% recognition rate. Decrease deployment costs using the VS121 with the ability to sense over 78 square metres when installed at the recommended 3 metre height. Embedded AI algorithms provide up to 98% accuracy for Line Crossing Counting using the advantage of continuous deep learning. The VS121 is ideal for asset management, shops and offices as well as determining the number of people in specific areas.

Enable custom detection regions to specify certain areas of a room to be monitored by the VS121. With up to 16 regions, alarms can be triggered per region without the redundant measuring of an entire room. By analysing real-time data, businesses can gain an insight into space usage to make informed decisions on room layouts and underutilised areas. User friendly privacy modes include Blur Mode and Privacy Masks during real time video streaming to further protect personal identity.

Compliance with GDPR guarantees 100% anonymous detection to protect against sending personal information. Smart U-turn technology filters the counting of people within a designated area: the sensor filters out redundant counting of people wandering the area to distinguish people who dont truly enter. The Milesight D2D (Device to Device) protocol using LoRaWAN enables communication with other Milesight LoRaWAN devices.


  • Simplify privacy concerns without the use of image capturing software
  • Recognition rate from AI to continually adapt to changing environments
  • Web GUI configuration using Wi-Fi
  • Compliant with standard LoRaWAN gateways and network servers


Physical Characteristics
Dimensions85 mm x 85 mm x 20 mm
InstallationCeiling Mounting
ColourWhite, Black
Environmental Characteristics
Operating Temperature-5C to +55C
Storage Temperature-20C to +60C
Relative Humidity0 ~ 95% (non-condensing)
Power Supply5V / 1.5A by Type-C Port
Sensor Characteristics
Field of View190 Horizontal, 112 Vertical
Recognition RangeBased on a radius of 5 metres (at a 3 metre height)
Recognition Rate>95%
Wireless Characteristics
Tx Power16 dBm (868) / 22 dBm (915) / 19 dBm (470)
Sensitivity-137dBm @300bps
ModeOTAA/ABP Class A

Ordering Information and Pricing
Part Number Model Number Description RRP
[A] Milesight VS121 AI Workplace Sensor
VS121-915M-WHT VS121-915M-WHT AI Workplace Occupancy Sensor, LoRAWAN, White $561.00 C3