Milesight VS121 AI Workplace Occupancy Sensor


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  • Free Shipping Total Purchase > RM150
  • Cash Back 1% of Total Purchase
  • 30 Days Return Policy
  • 1 Year Warranty
  • Refund Policy
  • LoRaWAN® & PoE Versions for Broader Applications
  • Up to 98% Accuracy
  • 100% Anonymous Detection (Compliant with GDPR)
  • Smart U-Turn Detection
  • Up to 78㎡ Large Detection Area
  • Maximum 16 Detection Regions
  • Milesight D2D Communication
  • User-Friendly Management on DeviceHub

Milesight VS121, is an AI workplace sensor designed to monitor occupancy and utilization in modern workspace, which can reach up to 98% recognition rate based on its AI algorithm. Milesight VS121 has dual versions transmitting data through LoRaWAN® or Ethernet for different applications.

Based on standard LoRaWAN® protocol, VS121 can work with Milesight LoRaWAN® gateway and mainstream LoRaWAN® network servers. They are equipped with Wi-Fi for easy configuration without any configuration tools.

With Ethernet transmission, VS121-P is available to provide more applications. Rich serial interfaces such as DI, DO, and RS485 are provided in VS121-P for various scenarios. VS121-P supports data push via HTTP for easily integration and allows for remote management via Milesight DeviceHub.

Main Features

Shared Values

  • Recognition rate is up to 98% based on advanced AI identification and analysis technologies
  • Support both region people counting and region occupancy detection
  • Support up to 16 mapped regions for detection
  • Allow for bi-directional line-crossing people counting
  • Smart U-turn counting to filter redundant counting of people wandering around the area
  • Support normal or blur mode and privacy masks up to 8 regions

LoRaWAN® Version Only

  • Compliant with GDPR without images collected, free from privacy concerns
  • Equipped with Wi-Fi for web GUI configuration
  • Support Milesight D2D protocol to enable ultra-low latency and directly control without gateway
  • Function well with standard LoRaWAN® gateways and network server

PoE Version Only

  • Support scheduled detection
  • Support Milesight DeviceHub management remotely
  • Adapt to more applications with rich industrial interfaces
  • DC or PoE power supply optional
  • Support transmitting people counting and occupancy data via HTTP Post

LoRaWAN® and PoE Versions, Flexible and Broad Applications


  • Ideal for privacy demanding scenarios
  • Low power consumption
  • Easy and wireless deployment
  • Long distance transmission


  • Ideal for scenarios requiring rich image
  • Ethernet transmission
  • PoE power supply
  • Schedule setting

LoRaWAN® Based

  • Low power consumption
  • Strong penetrating capacity
  • Easy configuration via Wi-Fi


Ethernet Based

  • Rich information display
  • Long distance monitoring
  • Easy configuration via Ethernet

100% Anonymous Detection

  • Compliant with GDPR
  • No PII information with only data transmission

User-Friendly Privacy Performance

  • Versatile user-friendly privacy modes
  • Real-time video stream for more applications

Higher Ceiling Mount

Breaking the barrier of the limited installation, the optional higher ceiling mount version is available to be deployed in a height of up to 7m. It is ideal for high ceiling applications like retail stores and shopping centers, bringing flexible scenario-adaptability to enhance practicability.

Up to 98% High Accuracy

Embedded AI algorithm, AI Workplace Occupancy Sensor is able to accurately realize counting. The accuracy gets enhanced with continuous deep learning.


Smart U-Turn Detection

By detecting the U-shape tracks of people flow, the sensor’s accuracy is guaranteed to avoid unnecessary people counting. For example, it filters out redundant counting of people wandering the area, especially in retail stores or buildings, to differentiate people who don’t truly enter retail stores or buildings.

Large Detection Area

Installed at the recommended 3 meters height, the sensor covers a wide area of 78 square meters. It is on top of the workplaces for not letting any place hide away.


16 Custom Detection Regions

Up to 16 customized regions can be set for precise detection. Every region is independent. They are able to detect and trigger alarms individually, which satisfies specific application demands to truly accomplish customization. Moreover, the schedule can be set for more flexible and tailored performance.

Line Crossing People Counting

The line crossing people counting is added for conspicuous performance. Supporting bi-directional counting, the sensor with ultra-high 98% recognition rate gets more accurate and objective information.

Remote Management

Both VS121 and VS121-P are flexible for remote and wider application managements and have great extensibility to be opened to third platforms.

  • Long distance management on DeviceHub (VS121-P)
  • User-friendly Milesight IoT Cloud management (VS121)

Milesight D2D Communication

The exclusive Milesight LoRa®-based protocol allows VS121 to easily communicate with other Milesight LoRaWAN® devices without the involvement of network infrastructures within 1 second. The facilities like lights can be intelligently switched through the linkage to realize accurate, timely and automatic responses, saving energy for management staff.

Flexible 2 Colors Choices

CoWork Solution for Smart Office

Explore the potential of workplace

It provides a series of compelling user
experiences that help people to “interact”
with their workspace in ways that help
them to be more productive and comfortable.


Model VS121 VS121-P
People Counting Field of View Standard Version: 190 ° Horizontal, 112 ° Vertical
High Ceiling Mount Version: 129.4 ° Horizontal, 68.4 ° Vertical
Recognition Range Standard Version: a Radius of 5 Meters, At the Height of 3m
High Ceiling Mount Version:18m × 7m, At the Height of 7m
Installation Height Standard Version: 2.5m to 4m
High Ceiling Mount Version: 5m to 7m
Recognition Rate Region Counting: Up to 95%
Line Crossing Counting: Up to 98%
Advanced Feature Mapped Detection Region Customization, Filter U-Turns, Privacy Mask
LoRaWAN® Transmission Protocol LoRaWAN®, Milesight D2D
Frequency AS923
Tx Power 16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity -137 dBm @300bps
Mode OTAA/ABP Class C
Ethernet Transmission Ethernet Port 1 × RJ45 10/100 Mbps (PoE PD)
Network Protocol HTTP, RTSP, NTP, SSH,etc.
Other Interfaces Wi-Fi IEEE 802.11 b/g/n, 2.4GHz
(AP Mode for configuration)
DI/DO 1/1
Serial Interface 1 × RS485
Button 1 × Reset Button,1 × Wi-Fi Button 1 × Reset Button
LED Indicators 1 × Wi-Fi 1 × Status
Power Input 2-pin 3.5 mm Terminal Block
Physical Characteristics Power Supply 5VDC / 1.5A by Type-C Port 1.5VDC / 2A by Terminal Block
2.802.3af PoE
Power Consumption 3.5W 1.DC:3.5W
Operating Temperature -5°C ~ +55°C
Storage Temperature -20°C ~ +60°C
Relative Humidity 0 ~ 95% (Non-condensing)
Color&Weight White/Black (Optional), 126.9g White, 186g
Dimension 85 × 85 × 20 mm
(3.35 × 3.35 × 0.79 in)
85 × 85 × 30 mm
(3.35 × 3.35 × 1.18 in)
Installation Ceiling Mounting
Approvals Regulatory CE, FCC, RoHS


Additional information
Weight 0.4 kg
Dimensions 19 × 12 × 6 cm
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