VS341

In Stock

Desk & Seat Occupancy Sensor

Dual PIR and thermopile detection for high-accuracy desk occupancy.

Features

  • Dual PIR and thermopile detection
  • Up to 98% recognition rate
  • 100% anonymous, GDPR compliant
  • Low latency, near real-time
  • Adjustable PIR detection angles
  • Milesight D2D, gateway-free control

Hardware

  • PIR area 107° Ă— 107°
  • Thermopile area 50°
  • 1 Ă— ER18505 battery, up to 10 years
  • 73 Ă— 73 Ă— 26 mm, 90 g
  • IP30, peel-and-stick mounting
  • LoRaWAN connectivity

Applications

Hot desking, libraries, dining areas, transport hubs, shared offices.

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    Description

    VS341 Description

    Overview

    The VS341 is a LoRaWAN desk and seat occupancy sensor that pairs a sensitive PIR with a thermopile. It is the high-accuracy member of the VS34x family, made for applications that need dependable seat-level data.

    Dual Technology

    PIR captures motion while the thermopile reads temperature variation in the target area. Combining both signals confirms genuine occupancy and raises recognition to up to 98%.

    Response

    Status updates are fast, with occupied detected in about 13 seconds and vacant in about 60 seconds. This near real-time behaviour suits booking systems and live availability displays.

    Flexibility

    Five interchangeable covers tune the detection angle to different desks and scenarios. This focuses the sensor on the target seat and avoids counting movement from neighbours.

    Power

    Low-power LoRaWAN gives a long battery life of up to 10 years from a single ER18505 cell. NFC configuration and peel-and-stick mounting make bulk deployment quick.

    Integration

    The Milesight D2D protocol lets the sensor talk to other Milesight devices without a gateway. It can drive a DS3604 E-ink display to show whether a workstation is free.

    Industry Applications

    VS341 Industrial Applications

    Workplace

    Offices track hot desk usage with high accuracy to optimise space and cut cost. Reliable seat data supports booking and a smoother employee experience.

    Libraries

    Libraries show which study seats are free in real time. Thermopile confirmation reduces false free or busy readings.

    Hospitality

    Dining areas monitor table occupancy to manage seating and service. Anonymous detection keeps guests comfortable.

    Transport

    Transport hubs track seat use in lounges and waiting areas. Accurate data guides cleaning and capacity decisions.

    Specifications

    Occupancy Detection

    Technology PIR & thermopile
    Recognition Rate Up to 98% (thermopile best at +10 to +30 °C)
    PIR Detection Area 107° horizontal, 107° vertical
    PIR Detection Distance Within 1 m
    Thermopile Detection Area 50° (50% level of sensitivity)

    Wireless Transmission

    Protocol LoRaWAN®, Milesight D2D
    Antenna Internal antenna
    Frequency CN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4
    Tx Power 16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz)
    Sensitivity −137 dBm
    Mode OTAA/ABP Class A

    Interface & Software

    Button 1 × power / reset button (internal)
    Indicator 1 × status indicator
    Power On/Off Mobile app via NFC or power button
    Configuration NFC via mobile app, downlink
    Advanced Feature Milesight D2D controller

    Physical Characteristics

    Power Supply 1 × 4000 mAh ER18505 Li-SOCl2 battery
    Battery Life Over 10 years (SF7, EU868 & US915); ~5.2 years (SF10, EU868); ~5.1 years (SF10, US915)
    Operating Temperature −20 °C ~ +60 °C
    Relative Humidity 0 ~ 95% (non-condensing)
    Dimensions 73 × 73 × 26 mm (without PIR cover)
    Weight 90 g
    Ingress Protection IP30
    Color & Material White + grey, PC + ABS (flame retardant)
    Installation 3M tape or wall screw mounting

    Approvals

    Environmental RoHS
    Privacy GDPR compliant, anonymous detection
    Order Codes

    Order Codes

    SKU: VS341

    VS341 – PIR & thermopile desk & seat occupancy sensor (specify frequency band: EU868, US915, AS923, etc.)

    Order by referencing the SKU – contact info@easynt.com

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