Aqara FP400 at IFA 2026: 10 Targets, 8 Zones and Spatial Intelligence

At IFA 2026, Aqara included Spatial Multi-Sensor FP400 among its spotlight products. The source article cites Aqara Docs describing presence detection, multi-person tracking, AI Enhanced Person Detection, real-time people count, illuminance sensing and zone-based automation.

How is FP400 different from a PIR sensor?

PIR sensors mainly react to changes in infrared radiation caused by movement. FP400 uses mmWave radar to maintain presence awareness when users move very little, while also producing position, movement-direction and zone data so automations can respond to space rather than only to a single motion event.

See Aqara Spatial Multi-Sensor FP400 for the dedicated product page.

Ten targets, eight zones and a 320-cell grid

According to Aqara Docs cited in the source article, FP400 can track up to ten targets simultaneously and supports up to eight customized zones on a 320-cell grid. When two people stand closer than roughly one meter, point-cloud data can merge and target separation can become less stable, so people-count data should be treated as supporting automation data rather than an absolute head-count system.

Installation position strongly affects accuracy

For wall-adjacent installation, the source article cites Aqara guidance of approximately 1.5–2 m height, around 120° horizontal and 100° vertical detection angles, with an ideal forward range up to about 10 m and width up to about 8 m under laboratory conditions. Corner installation can reduce side blind spots. For ceiling installation, the cited guidance is approximately 3–4 m depending on the area to be observed.

• Avoid pointing directly at large glass surfaces, mirrors, metal or highly reflective surfaces.
• Avoid placing the sensor near fans, HVAC vents or devices that create continuous motion.
• Keep important zones such as entry doors inside the practical field of view instead of at the extreme edge.
• If ghost targets appear, use Boundary/Interference Source settings and rerun AI Spatial Learning after the room is empty.

Zigbee and Matter do not necessarily expose identical capabilities

FP400 can operate in Aqara and Matter ecosystems, but the capabilities exposed on a third-party platform depend on the protocol and support level of that ecosystem. The source article notes that when the device is fully configured in Aqara Life before Matter sharing, it can be exposed as one overall presence sensor, up to eight zone presence sensors and one light sensor; adding it directly to a third-party Matter platform may expose a narrower feature set.

Practical project use

In townhouses, villas or premium apartments, FP400 can support scenarios such as keeping lights on while a user remains seated, maintaining HVAC operation while a room is still occupied, defining sofa/dining/work zones or switching loads off only when a space is genuinely empty. Commissioning should test stationary occupants, multiple people moving close together and areas with glass or reflective surfaces before automations are finalized.

Do not confuse FP400 with FP400 Pro

FP400 is the Aqara model highlighted at IFA 2026. FP400 Pro is a different model in the professional portfolio referenced at CEDIA 2026 and has additional capabilities in the source material such as posture recognition, assisted fall detection and entry/exit people counting. Those capabilities should not be attributed to the standard FP400.

Verification sources recorded in the Vietnamese article