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  1. Detection - Measurement
  2. Position, Speed and Acceleration Measurements
  3. Passive infrared motion sensor
  4. Milesight IoT
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Passive infrared motion sensor VS340
thermalwirelesswall-mounted

Passive infrared motion sensor - VS340 - Milesight IoT - thermal / wireless / wall-mounted
Passive infrared motion sensor - VS340 - Milesight IoT - thermal / wireless / wall-mounted
Passive infrared motion sensor - VS340 - Milesight IoT - thermal / wireless / wall-mounted - image - 2
Passive infrared motion sensor - VS340 - Milesight IoT - thermal / wireless / wall-mounted - image - 3
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Characteristics

Technology
passive infrared, thermal
Other characteristics
wireless, LoRaWAN, radio, wall-mounted, indoor, with presence detector

Description

Overview
  • Desk & seat occupancy sensor for hot desking and workstation monitoring, designed for non‑invasive, mass deployment.
  • Wireless LoRaWAN® communication with Milesight D2D support for direct device-to-device control.
  • Compact housing with peel-and-stick or screw mounting for fast installation.


Models
  • VS340: PIR-only occupancy sensor for cost-effective general applications.
  • VS341: Dual-technology sensor (PIR + thermopile) for improved accuracy and faster detection.


Key Features
  • Dual-technology sensing (VS341): PIR + thermopile to reduce false positives and improve detection reliability.
  • VS340: PIR-only option for standard use cases where cost-efficiency is required.
  • Recognition rate: VS340 up to ~95%; VS341 up to ~98% under optimal conditions (thermopile best range +10 to +30 °C).
  • Fast status updates: occupied ≈13 s; not-occupied ≈60 s for near real-time responsiveness.
  • Adjustable PIR detection angles via five interchangeable covers to fit single desks, face-to-face layouts, round or bar tables and custom setups.
  • LoRaWAN® (OTAA/ABP Class A) for long range, low power and deep penetration.
  • Milesight D2D protocol enables direct LoRa® device-to-device interactions (e.g., with DS3604 E-ink displays) without a gateway.
  • NFC configuration via mobile app for powering on/off and device setup without opening the enclosure.
  • Long battery life with a single 4000 mAh ER18505 cell depending on LoRa settings and reporting frequency.
  • Privacy-friendly anonymous detection (no cameras or PII), suitable for GDPR-aware environments.


Wireless & Communication
  • Protocol: LoRaWAN® and Milesight D2D.
  • Internal antenna.
  • Supported regions: CN470 / IN865 / EU868 / RU864 / US915 / AU915 / KR920 / AS923-1/2/3/4.
  • Transmit power examples: 16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz).
  • Receiver sensitivity: approx. -137 dBm.


Power & Battery
  • Power supply: 1 × 4000 mAh ER18505 Li-SOCl2 battery.
  • Battery life (example/lab guideline): over 10 years (SF7, EU868 & US915); around 5+ years at higher spreading factors depending on region and reporting frequency.


NFC Configuration
  • Use Milesight ToolBox mobile app + NFC to enable the device, verify credentials and configure settings without opening the unit.
  • Typical flow: install ToolBox → enable NFC → attach phone to device → verify and configure.


Applications
  • Hot desking and workspace occupancy management.
  • Libraries, dining areas, transit hubs and shared workspace monitoring.
  • Integration with displays and building systems to indicate workstation availability, control HVAC/lighting and trigger operational workflows.


Privacy & Compliance
  • Anonymous occupancy detection without cameras or personally identifiable information; suitable for privacy-sensitive and GDPR-aware deployments.


Notes
  • VS341 thermopile performs best within ambient temperature roughly +10 to +30 °C.
  • Performance and battery-life figures are lab-tested guidelines and depend on deployment conditions, reporting intervals and LoRaWAN parameters.


Technical Specifications
  • Series / Model: VS34x (VS340 / VS341)
  • Occupancy detection technology: PIR (VS340); PIR + thermopile (VS341)
  • Recognition rate: VS340 up to ~95%; VS341 up to ~98% (best conditions)
  • PIR detection area: 107° horizontal × 107° vertical; detection distance within 1 m
  • Thermopile detection area (VS341): ~50° (50% sensitivity level)
  • Protocol: LoRaWAN® (OTAA/ABP Class A) and Milesight D2D
  • Antenna: Internal
  • Frequency regions: CN470 / IN865 / EU868 / RU864 / US915 / AU915 / KR920 / AS923 variants
  • Tx power: 16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz)
  • Sensitivity: ~-137 dBm
  • Buttons / LEDs: 1 × internal Power/Reset button; 1 × status indicator
  • Configuration: NFC via mobile app (Milesight ToolBox) and downlink
  • Power: 1 × 4000 mAh ER18505 Li-SOCl2 battery
  • Battery life (example): Over 10 years (SF7); ~5+ years for SF10 scenarios (region-dependent)
  • Operating temperature: -20 °C to +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 mounting or wall screw mounting

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
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