LoRaWAN Desk and Seat Occupancy Sensor – Milesight VS341

Desk and seat occupancy sensor

Based on dual PIR and thermopile technology, the VS341 is designed to provide greater accuracy and faster occupancy status detection for more specific applications.

LoRaWAN® Wireless Deployment
High-precision, high-speed dual technology
Up to 98% ultra-high accuracy
100% anonymous detection
Ultra-low latency provides a fast response
Adjustable PIR angles for flexible performance
Small and non-invasive design
Exclusive communication from Milesight D2D Boost
Facilitate desk and seat occupancy.
The sensor’s impressive desk and seat occupancy detection capability frees up human resources, enabling efficient management.

LoRaWAN® Wireless Deployment:
Easy and convenient wireless deployment eliminates network connectivity hassles.
The benefits of LoRa technologies ensure low power consumption, long-distance transmission, deep penetration, and anonymous detection.

The VS341’s dual PIR and thermopile technology
employs highly sensitive PIR and thermopile sensors to accurately detect occupancy.
This dual-detection mechanism fully captures movement and temperature variations in its target areas, contributing to reliable results.

Industry-leading 98% accuracy.
Based on dual technology, the sensor achieves up to 98% accuracy.
It meets general requirements and enables precise detection, outperforming similar products.

Timely response with low latency:
The sensor can quickly process data to detect busy status in as little as 13 seconds and unbusy status in as little as 60 seconds, providing near real-time performance.
This is invaluable for efficiency-driven applications that need rapid responses and timely action.

Adjustable detection angles:
The target areas can be varied as needed.
To avoid unnecessary detection and focus on the target regions, the sensor is equipped with 5 different covers, making it ideal for detecting different table and desk occupancies at various ranges in different scenarios.

Intelligent energy-saving control:
The unique Milesight LoRa®-based protocol allows the sensor to easily communicate with other Milesight LoRaWAN® devices without a gateway in just 1 second.
It can also detect occupancy status to control the E-link DS3604 IoT display, providing a convenient indication of workstation availability.

Easy and quick deployment.
The slim, lightweight design and peel-and-stick adhesive mounting make it convenient for mass deployment.
It can be applied in any application, even in large quantities. It requires minimal energy and deployment is straightforward.

Occupancy detection

Technology: PIR and Thermopile
Recognition rate: up to 98%
PIR detection area: 107° Horizontal, 107° Vertical
PIR detection distance: within 1 m
Thermopile detection area: 50° (50% sensitivity level)
Wireless transmission

Protocol: LoRaWAN®, Milesight D2D
Frequency: US915
Transmission power: 16 dBm (868 MHz)
Sensitivity: -137 dBm
Physical characteristics

Power supply: 1 x ER18505 4000 mAh Li-SOCL2 battery
Battery life: approximately 5 years (100 activations per day, 25°C)
Operating temperature: -20°C ~ +60°C
Relative humidity: 0 ~ 95% (non-condensing)
Dimensions: 73 x 73 x 26 mm (2.87 x 2.87 x 1.02 inches) (Without PIR cover)
Weight: 90g
Ingress protection: IP30
Color and material: white + gray, PC + ABS (flame retardant)
Installation: 3M tape mounting, wall screw mounting