The Shelly Presence Gen4 detects real presence - even without movement - tracking up to 6 people in 10 zones for accurate, reliable automation. Prevents false triggers, cuts energy waste, and integrates easily with smart lighting, HVAC, and home systems. Shelly Presence Gen4 brings next-level precision to your smart automations, with multi-protocol connectivity including Wi-Fi, Zigbee and Bluetooth (and Matter certified). Using advanced radar technology, it can detect even the slightest human presence - whether someone is actively moving or simply sitting still. With multi-person tracking, zone-based sensing, and smooth integration into your smart home ecosystem (including Home Assistant), it's the perfect upgrade for lighting, HVAC, and energy-saving scenarios. The Presence Gen4 includes adjustable sensitivity and a built-in light sensor to further tweak and support automations, and is powered via USB-C (5V 1A). A USB-C cable is included. Available in white or black - please select an option before adding to cart. Features * Multi-protocol connectivity: Wi-Fi, Zigbee, Bluetooth * Matter - certified * Advanced presence detection: Accurately detects even the slightest movement for truly responsive automation * Multi-person tracking: Tracks up to 6 people simultaneously * Zone-based sensing: Supports up to 10 customizable detection zones, covering an area up to 42 sq.m * Still presence detection: Detect people even when they remain still or seated * Adjustable sensitivity: Can be configured to ignore movements from kids, pets, or robot vacuum cleaners * Compact form factor: Can be installed discreetly in any room * Flexible placement: Designed for easy setup on walls, bookshelves, tabletops, or even on top of wardrobes * Built-in light sensor: Detects ambient light conditions and reports three distinct levels - dark, twilight, and bright Specifications Size (HxWxD): 64x41x26 mm (without stand) 73x41x37 mm (with stand) Weight: 42g (without stand) 85g (with stand) Mounting: Freestanding base - for horizontal placement on shelves, tables, or wardrobes Adhesive tape - for tool-free installation on flat surfaces Screws and wall plugs - for installation on walls or other solid surfaces Shell material: Plastic with aluminium back Shell colour: White Black Ambient working temperature: -20 °C to 40 °C Humidity: 30 % to 70 % RH Max. altitude: 2000 m Power supply: 5 VDC via USB-C, 1 A Power consumption: 2.5 W (nominal) 3.5 W (max) Light sensor: Yes Radar sensor: Yes Protocol: 802.11 b/g/n/ax RF band: 2401 - 2483 MHz Max. RF power: < 20 dBm Range: Up to 30m indoors and 50m outdoors (Depends on local conditions) Protocol: 5 (LE) RF band: 2402 - 2480 MHz Max. RF power: < 20 dBm Range: Up to 10m indoors and 30m outdoors (Depends on local conditions) Protocol: 802.15.4 RF bands: 2405 to 2480 MHz Max. RF power: < 20 dBm Range: Up to 100 m indoors and 300 metres outdoors (Depends on local conditions) CPU: ESP-Shelly-C68F Flash: 8 MB Schedules: 20 Advanced schedules: Yes Webhooks (URL actions): 20 with 5 URLs per hook Scripting: Yes MQTT: Yes UDP: Yes Encryption: Yes KVS (Key-Value Store): Yes Radar frequency: 60-64 GHz Object detection Yes, up to 6 objects (people) Wall mount coverage 140 degrees horizontal (70 degrees on each side), 8 x 8 m 120 degrees vertical Corner mount coverage 90 degrees (45 degrees on each side), 7 x 7 m Still detection Yes, up to 3m Resources * Shelly Product Documentation * Printed User Guide (as found within the package) * Components and APIs * 3D-Printable Angle Stand * Declaration of Conformity * Device Identification * Device name: Shelly Presence Gen4 * Device model: S4SN-0U61X * Device SSID: ShellyPresence-XXXXXXXXXXXX * Device Bluetooth ID: 0x1821 * EAN: * White: 3800238072391 * Black: 3800238072407 Handy Shelly Resources * Shelly Cloud * Shelly App * Apple App Store * Google Play * Huawei AppGallery * Home Assistant Shelly Integration * Shelly Community Forum * Shelly Facebook Support Group * Shelly Knowledgebase * Shelly Device Finder (easy-to-use software to find Shelly devices in the local network) * Shelly Developer API Package Contents * 1x Shelly Presence Gen4 (white or black - select an option before adding to cart) * Includes stand, adhesive tape and mounting hardware * 1x USB-A to USB-C cable