Room-Scale Presence Sensing

The Aqara Spatial Multi-Sensor FP400 is an advanced presence sensor for larger rooms and open-plan spaces. Using 60 GHz mmWave radar, it knows not just whether someone is in the room but where they are, tracking up to 10 people at once across a detection area of up to 8 × 10 metres. It works without a camera, so it is privacy-friendly in living areas, bedrooms and offices.

Up to 8 Detection Zones

Divide a room into as many as 8 separate zones on a 0.5-metre grid, such as the sofa, the dining table, the desk or the doorway, and trigger different automations in each. Turn on the reading lamp when someone sits in the armchair, dim the main lights when you settle on the sofa, or adjust heating and cooling only where people actually are.

Tracks Up to 10 People

The FP400 follows the position of up to 10 people in real time and can report how many are in the room. Local AI filtering reduces false triggers from pets, robot vacuums and other moving objects, so lights stay on while people sit still and switch off reliably when the room is empty. Sensitivity and absence delay can be adjusted for each space.

Built-In Light Sensor

An integrated ambient light sensor lets you combine presence and brightness in one automation. Only switch the lights on when someone enters and the room is actually dark, or close the blinds when sunlight floods a busy room. With a wide 120° horizontal and 100° vertical field of view, one sensor can cover a whole living area.

Flexible, Always-On Installation

Mount the FP400 on a wall, in a corner or on the ceiling using the magnetic mount. It is powered continuously over USB-C (5 V, 1 A), so there are no batteries to change and it is always ready to respond. It measures just 64 × 64 × 29.5 mm and is IPX5 water-resistant, so it can also be used in damp indoor areas such as bathrooms.

Zigbee and Matter over Thread

The FP400 supports both Zigbee and Thread. Use it with an Aqara Zigbee hub for the full set of zone and tracking features, or add it to Apple Home, Google Home, Amazon Alexa, SmartThings or Home Assistant through Matter (a Matter controller and Thread border router are required). Please note a USB power adapter is not included, so you will need a spare USB plug.