Milesight VS341 - Desk & Seat Occupancy Sensor
Milesight VS341 - Desk & Seat Occupancy Sensor
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The Milesight VS341-868M is a compact desk-mounted sensor that detects whether an individual desk or seat is occupied, combining a PIR motion detector with a thermopile infrared sensor for up to 98 % accuracy within about 1 m. Interchangeable PIR covers tune the field of view for single desks, face-to-face desks, bar tables or round tables.
It contains no camera, so detection is entirely anonymous. A single replaceable Li-SOCl₂ battery lasts up to 10 years, it mounts in seconds with 3M tape or screws, and it reports over LoRaWAN® Class A (EU868) with Milesight D2D support.
Before you install
- Setup: via the Milesight ToolBox app (NFC).
- Power: a lithium battery (ER18505), ~5-year life.
- Data: over LoRaWAN — needs a LoRaWAN gateway to send data (sold separately); remote monitoring via the Milesight platform is free for up to 10 devices. Also supports Milesight D2D for direct control without a gateway.
Parameters
| Wireless Protocol | LoRaWAN®, Class A (OTAA/ABP), Milesight D2D support |
| Frequency | EU868, max. 16 dBm |
| Sensing Technology | PIR + thermopile IR; anonymous desk/seat occupancy |
| Detection / Range | Detection within 1 m; interchangeable FoV covers (e.g. 70°×60° … 107°×107°) |
| Installation Height | ~70 cm reference height, 20–40 cm from table edge |
| Accuracy | Up to 98 % |
| Privacy | No images captured — 100 % anonymous, GDPR compliant |
| Battery | 1 × 4000 mAh Li-SOCl₂ (ER18505), up to 10 years |
| Configuration | NFC via Mobile App, Downlink |
| Enclosure | PC+ABS (UL94 V0), IP30 |
| Dimensions | 73 × 73 × 26 mm (without cover) |
| Weight | 90 g |
| Mounting | 3M tape or wall screw |
| Certifications | CE, FCC, RoHS |


