Milesight Sensor VS373
Milesight VS373 is a non-contact fall detection sensor designed for elderly care and healthcare facilities. It employs advanced 4D 60-GHz millimeter-wave radar technology combined with AI algorithms to detect falls and abnormal movements with up to 99% accuracy. The sensor provides 24/7 monitoring in dark and humid environments, offers complete privacy protection without image capture, and features IP65 waterproof rating. It supports multiple detection functions including bed presence, room occupancy, motionless detection, and breathing monitoring.
Integration Links
General configuration
Configuration is done via NFC using the Milesight ToolBox app.
For sensor configuration instructions, see 👉 General configuration.
LoRaWAN Network Options
For information about supported LoRaWAN network server platforms, see 👉LoRaWAN Network Options
LoRaWAN configuration
| Parameter | Value |
|---|---|
| Work mode | Class C |
| Join type | OTAA |
| AppEUI/JoinEUI | 24E124C0002A0001 |
| AppKey | 5572404C696E6B4C6F52613230313823 |
DevEUI (Device Extended Unique Identifier) is unique for each device and can be found printed on the device label.
Data Encoding & Decoding
| Type | GitHub Link |
|---|---|
| Decoder | View decoder |
| Encoder | View encoder |
| Codec | View codec |
Terminology Overview
Decoder -> Converts the device's binary payload into readable JSON.
Encoder -> Converts JSON commands into binary payload for downlinks.
Codec -> Defines the rules for decoding and encoding (structure, fields, ports) used by network servers.
Power supply
| Type | Value |
|---|---|
| Power | DC 5V/3A via USB Type-C |
Technical Specifications
| Parameter | Value |
|---|---|
| Wireless Transmission | |
| Technology | LoRaWAN®, Milesight D2D, Wi-Fi 2.4 GHz |
| Antenna | Internal |
| Frequency | CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1&2&3&4 |
| Tx Power | 16 dBm (868MHz) / 22 dBm (915MHz) / 19 dBm (470MHz) |
| Sensitivity | -137 dBm @300bps |
| Mode | OTAA / ABP Class C |
| Radar Detection | |
| Technology | 4D 60-GHz mmWave Radar |
| Transceiver | 24 transmitters, 22 receivers |
| Field of View | 70° H × 140° V |
| Detection Range | 2m×2m to 4m×5m (within 2.3-3m height) |
| Fall Detection Accuracy | Up to 99% |
| Detection Functions | |
| Primary Features | Fall detection, bed presence, room occupancy |
| Advanced Features | Motionless detection, breathing detection, bed exit alerts |
| Interfaces | |
| Digital Output | 1× (60V/1A) |
| Buttons | 1× Reset, 1× Multi-function |
| Indicators | Multi-color LED, Buzzer |
| Configuration | NFC / Downlink |
| Physical Characteristics | |
| Power Supply | DC 5V/3A (USB Type-C) |
| Power Consumption | Max 9.5W |
| Operating Temp | 0°C ~ +50°C |
| Humidity | 0%–95% RH (non-condensing) |
| Ingress Protection | IP65 |
| Dimensions | 114 × 84 × 15 mm |
| Weight | 214.5 g |
| Material | ABS+PC |
| Installation | Wall or ceiling mount |
| Approvals | CE, FCC |