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A motion sensor that only knows about motion turns your lights on at noon. The Tuya FH400A also measures how bright the room is, so an automation can say “if someone walks in and it is dark, switch the light on” — which is the rule most people actually wanted in the first place.
Two sensors, one small box
PIR human detection plus an ambient light reading, both reported to the Tuya Smart app in real time. You can watch the state from anywhere, or just leave it to run the scenes you have built.
It talks to everything else in Tuya
Link it to Tuya lights, switches, curtains or an alarm: light on when motion is detected in low light, everything off after a set period of stillness, an alert if there is movement in a room that should be empty. Alexa and Google Assistant are supported for voice control on top.
It runs on 2.4GHz WiFi — the standard band for smart-home gear — mounts in a couple of minutes without wiring, and suits corridors, stairwells, offices, garages and storerooms.
- PIR human motion detection plus light-intensity sensing
- Real-time status in the Tuya Smart app
- Scene automation with Tuya lights, switches, curtains and alarms
- Alexa and Google Assistant voice control
- 2.4GHz WiFi — no hub required
- Compact, tool-light installation
- Encrypted data transmission
This is the exact sensor filmed for the review above, inspected before listing — which is why it is half its usual price. Set one rule with it tonight and you will want a second one for the stairs.
Available in Pakistan with cash on delivery, shipped from Lahore.
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