Milesight VS321 - Wireless AI Occupancy Sensor
Milesight VS321 - Wireless AI Occupancy Sensor
Free shipping within the Czech Republic on purchases over 120 EUR.
The Milesight VS321-868M is a fully wireless AI occupancy sensor combining a low-power AI chip, PIR-triggered wake-up and an RGB camera to count people or detect desk occupancy in two switchable modes, at up to 95 % accuracy across a 129° × 93° field of view. Integrated temperature, humidity and light sensors add basic environmental data.
All processing is on-device — no images are stored or transmitted, only anonymous data, keeping it GDPR compliant. It runs on four replaceable Li-SOCl₂ batteries for over 10 years, communicates over LoRaWAN® Class A (EU868) with Milesight D2D, and is configured via NFC.
Before you install
- Setup: via the Milesight ToolBox app (Bluetooth).
- Power: 4× lithium batteries (ER14505); USB-C for temporary use only.
- 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 | AI chip + PIR-triggered RGB camera; people counting / desk occupancy; onboard T/H/light |
| Detection / Range | FoV 129° H × 93° V; PIR 115°, 4 m |
| Installation Height | 2.4–4 m (≥50 lux) |
| Accuracy | Up to 95 % |
| Privacy | No images captured — 100 % anonymous, GDPR compliant |
| Battery | 4 × 2700 mAh Li-SOCl₂ (ER14505) or USB-C, over 10 years |
| Configuration | NFC via Mobile App, Downlink |
| Enclosure | PC (UL94 V2), IP30 |
| Dimensions | 100 × 100 × 26 mm |
| Weight | 145 g (without batteries) |
| Mounting | Ceiling (screws or twist-lock bracket) |
| Certifications | CE, FCC |

