A smart smoke alarm sensor is a good smart home helper.


Installing a smoke alarm both inside and outside sleeping areas can protect you and your family well.
With a smoke sensor work on day and night, you no longer have to worry about the safety of your home all the time.

YG400A Tuya Smart Wi-Fi Smoke Detector

    • Input Voltage: DC3V LR03
    • Backup Battery: AAA1.5V x 2
    • Static Current: ≤15uA
    • Alarm Current: ≤160mA
    • Low-voltage Notification: ≤2.4V
    • Alarm Sound Level: 80dB
    • Wireless Protocol: Wi-Fi - 2.4GHz
    • Operation Temp.: –10°C - +50°C
    • Working Humidity: 5% - 95% non-condensing
    • Dimension: 38mm x Φ80mm

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