Aqara Presence Sensor FP2: The Smart Home Sensor That Actually Knows You're There
TestedYour lights turn off while you're sitting perfectly still on the couch. Your thermostat forgets you're home. Your "smart" nightlight has no idea you got up at 3am. The Aqara Presence Sensor FP2 exists to fix exactly that — a small wall- or desk-mounted sensor that uses radar, not basic motion detection, to figure out not just if someone's in the room, but where they are and what they're doing. At $82.99, it sits in the middle of the smart home sensor price range, and it has to earn that premium against far cheaper motion sensors.
What It Is
The FP2 is Aqara's second-generation presence sensor, and it's a real step up from the PIR (passive infrared) motion sensors packed into most smart home starter kits. Instead of just catching movement, it uses millimeter-wave radar to track human presence continuously — even when you're sitting still, reading, or asleep. It plugs into a wall outlet or mounts to a surface, then connects to your smart home setup through Aqara's hub ecosystem (or directly via compatible platforms), triggering lights, climate control, or automations off real-time, zone-level presence data instead of a simple "something moved" signal.
Who It's For
This isn't for someone who just wants a light to turn on when they walk into a room — a $15 motion sensor handles that fine. The FP2 is for people who've already tried smart home automation and hit its ceiling: lights dying mid-movie, a thermostat that can't tell you're home, a nightlight that misses you getting up at 3am. If you like fine-tuning zones and automations in an app, or you want fall-detection monitoring for an aging family member, this sensor earns its keep.
Key Features and Specs
- mmWave radar detection — tracks presence and subtle movement, not just motion, so it won't lose track of someone sitting still
- Zone-based tracking — carve a room into multiple zones in the app and set different automation rules for each
- Fall detection — genuinely useful for accessibility or elder-care setups
- Multi-person tracking — distinguishes between more than one person in a space
- No camera — presence detection without a lens, a real privacy plus for bedrooms and bathrooms
- Works with Aqara's ecosystem — plus HomeKit, Alexa, and other major platforms depending on your hub setup
Pros
- Dramatically more accurate than motion-only sensors, especially for "stay-on" scenarios
- Zone customization opens up genuinely creative automations
- No camera means less privacy anxiety than presence-tracking cameras
- Fall detection adds real value beyond convenience
Cons
- Setup and zone configuration takes patience — this isn't plug-and-forget
- Best results often require an Aqara hub, an added cost if you don't already have one
- Occasional false triggers near reflective surfaces or fans, as with radar-based sensors generally
- Priced at the higher end of what you'd call an "affordable" sensor
The Aqara Presence Sensor FP2 isn't the cheapest sensor on the shelf, and it doesn't need to be — it's a specialized tool priced for the job it does. Skip it if you just want a light to flip on when you walk in. Buy it if basic motion detection has already let you down and you want automations that actually understand what's happening in the room. For anyone past the beginner stage of smart home setup, this is one of the more satisfying upgrades available at this price.
Ready to stop yelling at your lights? https://www.amazon.com/Aqara-Positioning-Multi-Person-Detection-Assistant/dp/B0BXWZMQJ3?tag=thebenchtest-20
