Desk & Seat Occupancy Sensor

The Hot Desking, Make It Cool

VS340/VS341
PIR
Thermopile
desk and seat occupancy sensor vs340 and vs341 small
desk and seat occupancy sensor small
desk and seat occupancy sensor side small
  • LoRaWAN® Wireless Deployment
  • High Precision & Speed Dual-Technology
  • Up to 98% Ultra-High Accuracy
  • 100% Anonymous Detection
  • Ultra Low Latency Gains Quick Response
  • Adjustable PIR Angles for Flexible Performance
  • Tiny and Non-Invasive Design
  • Unique Milesight D2D Boost Communication
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  • VS340/VS341

Make Desk & Seat Occupancy Easy

The sensor's impressive desk & seat occupancy detection capability frees up human resources enabling efficient management.

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Desk & Seat Occupancy Sensor VS340

Based on the highly sensitive PIR, VS340 is designed
for high-cost performance, which meets general
needs.

Desk & Seat Occupancy Sensor VS341

Based on the dual-technology of PIR and thermopile, VS341 is
designed for bringing higher accuracy and quick occupancy
status detecting for more specific applications.

LoRaWAN® Wireless
Deployment

Easy and convenient wireless deployment dispenses with being perplexed by network connection. The benefits of LoRa technologies guarantee low power consumption, long-distance transmission, deep penetration, and anonymous detection.

wireless deployment occupancy sensor

Dual-Technology of PIR
& Thermopile

VS341 employs both highly sensitive PIR and thermopile sensors to accurately detect occupancy. The double detection mechanism fully captures the motions and temperature variations in its target areas and contributes to trustworthy results.

98% Industry Leading
Accuracy

Based on dual technology, the sensor is capable of reaching an up to 98% high accuracy. It satisfies general requirements and further makes accurate detection possible, beating the most similar products.

quick occupancy status response

Timely Response with Low Latency

The sensor can process rapidly to detect the status of occupied reaching 13s and not occupied reaching 60s, bringing near real-time performance. It is valuable for effectiveness-oriented applications to gain fast responses and take timely actions.

Adjustable Detection
Angles

The target areas can be varied as appropriate. To avoid unnecessary detection and focus on the aim regions, the sensor is equipped with 5 different covers, making it preferable for detecting different table and desk occupancy with various ranges in different scenarios.

single person desk
face to face desk
round table
for bar table
for customization
long battery life

5 Years Long Service Life

Based on the low power consumption LoRaWAN®, the sensor can maintain a long battery life of 5 years with a frequent report rate. It is ideal for covering most user demands in different applications.

Energy-Saving Smart
Control

The exclusive Milesight LoRa®-based protocol allows the sensor to easily communicate with other Milesight LoRaWAN® devices without a gateway within 1 second. It can also detect occupancy status to control the DS3604 E-ink IoT Display, providing a convenient indication of workstation availability.

fast and easy deployment

Easy and Fast Deployment

The thin-and-light design and peel-and-stick mounting make it convenient for bulk deployment. It can be applied in any application with even a large amount. Not much energy is needed and the deployment can be easily done.

Typical Application

hot desking
Hot Desking
library
Library
dinning area
Dinning Area
traffic hub
Traffic Hub
Learn More

NFC Configuration

Switching On/Off & Configuring the Devices Wirelessly

nfc configuration 1

1st Step

Install the
Milesight ToolBox

nfc configuration 2

2nd Step

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

nfc configuration 3

3rd Step

Verify the password
and start configuring

Explore More About NFC Configuration >>

Installation

desktop and dinrail mounting

You May Want to Know

Why do I need desk occupancy sensors in my office?

Desk occupancy sensors can be very helpful in modern offices, especially with hybrid work models. They provide real-time data on desk usage for facility managers to optimize office layouts, reduce real estate costs, and streamline hot desking. By integrating with building systems to control lighting and HVAC, these sensors also support energy efficiency and operational cost savings. They improve the employee experience by ensuring workspace availability and triggering cleaning alerts for healthier environments.

How does a desk occupancy sensor work?

Desk occupancy sensors use advanced technologies like Passive Infrared (PIR) and thermopile to accurately detect workstation usage. For example, Milesight VS34x series desk occupancy sensors employ PIR for motion detection and Thermopile IR for temperature variation, offering up to 98% accuracy. These sensors feature adjustable detection angles, real-time monitoring (within 13 seconds for occupancy), and wireless communication via LoRaWAN® and Milesight D2D protocols.

Can I use desk occupancy sensors in flexible or shared office spaces?

Desk occupancy sensors are highly suitable for flexible or shared office spaces. They provide real-time data on desk usage for space optimization, helping to reduce workspace needs and real estate costs. For hot desking, these sensors facilitate automatic desk booking and release to maximize resource utilization. They also enhance the employee experience by reducing time spent searching for workspaces. The data-driven insights gathered inform decisions about office layout and resource allocation. Additionally, these sensors can integrate with other building systems to optimize energy use.

Are there any privacy concerns with using desk occupancy sensors?

Many desk occupancy sensors are designed with strong privacy protections. For example, the Milesight VS34x series features anonymous detection that monitors occupancy without capturing personally identifiable information or images, ensuring compliance with privacy regulations like GDPR. They rely on non-invasive technology, avoiding cameras and instead detecting heat and movement. The sensors only collect basic occupancy and usage data, which is transmitted through the LoRaWAN® network. Organizations can ensure transparency and foster acceptance by clearly communicating how data is collected and used.

What kind of return on investment (ROI) can I expect from desk occupancy sensors?

Investing in desk occupancy sensors offers strong ROI for organizations, especially in hybrid workplaces. They help eliminate ghost bookings, improve space utilization, and reduce real estate costs. Automation of desk and meeting room bookings boosts operational efficiency, while targeted cleaning reduces maintenance costs. Energy consumption drops with smart control of lighting and HVAC. Data insights guide better decision-making, improve space planning, and support sustainability goals.

Specifications

Occupancy Detection
TechnologyPIR
Recognition RateUp to 95%
PIR Detection Area107 ° Horizontal, 107 ° Vertical
PIR Detection DistanceWithin 1m
Thermopile Detection Area----
Wireless Transmission
ProtocolLoRaWAN®, Milesight D2D
FrequencyCN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4
Tx Power16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity-137 dBm
ModeOTAA/ABP Class A
Others
Button1 x Power/Reset Button (Internal)
Indicator1 × Status Indicator
ConfigurationNFC Configuration via Mobile App
Advanced FeatureMilesight D2D Controller
Physical Characteristics
Power Supply1 x 4000 mAh ER18505 Li-SOCL2 Battery
Battery Life2Around 5 Years (100 Triggers per Day, 25°C)
Operating Temperature-20°C ~ +60°C
Relative Humidity0 ~ 95% (Non-condensing)
Dimension73 x 73 x 26 mm ( 2.87 x 2.87 x 1.02 in) (Without PIR Cover)
Weight90g
Ingress ProtectionIP30
Color & MaterialWhite + Grey, PC + ABS (Flame Retardant)
Installation3M Tape Mounting, Wall Screw Mounting

1The temperature range of thermopile to reach best recognition rate is +10 to +30 °C.
2 Tested under laboratory conditions and for guideline purposes only.

Occupancy Detection
TechnologyPIR & Thermopile
Recognition RateUp to 98%1
PIR Detection Area107 ° Horizontal, 107 ° Vertical
PIR Detection DistanceWithin 1m
Thermopile Detection Area50° (50% level of sensitivity)
Wireless Transmission
ProtocolLoRaWAN®, Milesight D2D
FrequencyCN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4
Tx Power16 dBm (868 MHz)/20 dBm (915 MHz)/19 dBm (470 MHz)
Sensitivity-137 dBm
ModeOTAA/ABP Class A
Others
Button1 x Power/Reset Button (Internal)
Indicator1 × Status Indicator
ConfigurationNFC Configuration via Mobile App
Advanced FeatureMilesight D2D Controller
Physical Characteristics
Power Supply1 x 4000 mAh ER18505 Li-SOCL2 Battery
Battery Life2Around 5 Years (100 Triggers per Day, 25°C)
Operating Temperature-20°C ~ +60°C
Relative Humidity0 ~ 95% (Non-condensing)
Dimension73 x 73 x 26 mm ( 2.87 x 2.87 x 1.02 in) (Without PIR Cover)
Weight90g
Ingress ProtectionIP30
Color & MaterialWhite + Grey, PC + ABS (Flame Retardant)
Installation3M Tape Mounting, Wall Screw Mounting

1The temperature range of thermopile to reach best recognition rate is +10 to +30 °C.
2 Tested under laboratory conditions and for guideline purposes only.

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