The Shelly Presence Gen4 is an advanced presence sensor from the manufacturer, utilizing mmWave radar technology (60–64 GHz) for precise and reliable detection. Unlike traditional motion sensors, it detects not only movement but actual presence, meaning it continues to work even when someone is sitting still or remaining stationary in a room.
The sensor can track up to 6 people simultaneously and supports up to 10 separate detection zones, making it ideal for intelligent automation in larger or open spaces. With adjustable sensitivity, false triggers caused by pets or robot vacuums can be effectively filtered out.
The device features Wi-Fi, Zigbee, and Bluetooth connectivity, and is also Matter-compatible, ensuring broad integration with various smart home systems. Its compact design and flexible placement options allow for easy installation on walls, shelves, or even furniture. It enables the creation of a wide range of automation scenarios, such as turning on lights when someone enters within a 3-meter range or starting ventilation. Whatever your needs, they can be easily implemented with the Shelly Presence Gen4 sensor.
Shelly is one of the most well-known smart home brands, recognized for its Wi-Fi-based and multi-protocol devices. Its products integrate seamlessly with platforms such as Home Assistant, Google Home, Amazon Alexa, or SmartThings, and offer strong local control capabilities.
Shelly devices are among the easiest smart devices to integrate on the market, even with their factory firmware. They support MQTT and control via REST API. They are compatible with voice assistants such as Google Home, Amazon Echo, and Yandex Alice.
Shelly devices support simultaneous Cloud and MQTT control. Through Shelly Cloud, many devices have already been integrated with the SmartThings platform.
In addition, the factory firmware supports a wide range of open-source and other systems, including:
True presence detection: mmWave radar technology detects even stationary individuals
Multi-person tracking: Detects up to 6 people simultaneously
Zone-based detection: Up to 10 configurable areas
Wide coverage: Monitors areas up to 42 m²
Adjustable sensitivity: Reduces false alarms (e.g., pets)
Built-in light sensor: Detects dark, dim, and bright conditions
Compact design: Discreet installation in any room
Energy efficiency: Automatically turns off devices in empty rooms
Event log: Tracks presence and activity history
Protocols: Wi-Fi 6, Zigbee 3.0, Bluetooth 5 LE
Multi-protocol support: Multiple communication standards in one device
Matter support: Matter over Wi-Fi – compatible with Apple Home, Google Home, Alexa, SmartThings
Native platform: Shelly Cloud and Shelly Smart Control
Third-party integration: Home Assistant, MQTT, Webhooks, REST API
BLE gateway: Supports Shelly BLU devices
Local operation: Works without internet connection
Voice control: Alexa and Google Assistant
Product name: Shelly Presence Gen4
Communication: Wi-Fi, Zigbee, Bluetooth, Matter
Power supply: 5V USB-C
Detection: mmWave radar
Max. person tracking: 6
Number of zones: max. 10
Coverage: max. 42 m²
Light sensor: Yes
Size: 64 × 41 × 26 mm (without stand), 73 × 41 × 37 mm (with stand)
Weight: 42 g (without stand), 85 g (with stand)
Housing: Plastic with aluminum back
Color: White
Mounting: Stand, adhesive, or screw mounting
Operating temperature: -20°C – +40°C
Humidity: 30–70% RH
Max. installation altitude: 2000 m
Power consumption: 2.5 W (typical), max. 3.5 W
Internal temperature sensor: Yes
Radar frequency: 60–64 GHz
Object detection: up to 6 people
Static presence detection: Yes (up to 3 m)
Wi-Fi: 802.11 b/g/n/ax (2.4 GHz)
Wi-Fi range: max. 30 m indoor / 50 m outdoor
Bluetooth: 5 LE
Bluetooth range: max. 10 m indoor / 30 m outdoor
Zigbee: 802.15.4
Zigbee range: max. 100 m indoor / 300 m outdoor
CPU: ESP-Shelly-C68F
Flash memory: 8 MB
Schedules: max. 20
Advanced scheduling: Yes
Webhook support: 20 (max. 5 URLs per hook)
Scripting: Yes
MQTT: Yes
UDP: Yes
Encryption: Yes
KVS: Yes
Coverage (wall-mounted): 140° horizontal, 120° vertical, max. 8 × 8 m
Coverage (corner-mounted): 90°, max. 7 × 7 m
