AJ-938WB wifi smoke and carbon monoxide detector

  • wifi smoke and carbon monoxide detector
  • Smart phone app control
  • Smoke and CO 2-in-1
  • 10 years of battery life
  • 10 years of Figaro CO sensor
  • ETL UL217/UL2034 FCC pending
  • Low battery warning
  • Easy installation
  • Loud 85db Buzzer


    10 Year Lithium Battery wifi smoke and carbon monoxide detector

    This smoke and carbon monoxide alarm 10 years of continuous power with a built-in lithium battery, saving on energy while remaining; Gives you the earliest possible warning of smoke and carbon threat with both a loud 85 dB alarm and a rapid flashing red LED indicator; this alarm is sure to wake up you and your family, even when sound asleep

    • 10 year sealed battery-powered alarm
    • Optical smoke sensor – Detects slow-smoldering fires
    • Smart Silence – Silence false alarms
    • Reduces nuisance alarms
    • 10-Year Battery Life

      This operated combination alarm provides constant monitoring, even if there’s a power failure. Therefore, your home and family will be protected 24/7 so everyone can sleep safe and sound at night.


      Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs

    • WiFi Base

      With WiFi Base, Can Support mobile App Connection

    Additional information


    AJ-933, AJ-938, AJ-939

    technical parameter

    WIFI UL217/2034 Smoke&Carbon monoxide detector

    Smoke module:

    Working Voltage: DC3V built-in lithium battery(CR 123A)
    Battery life:10 years
    Standby current:8.2uA
    Alarm current:﹤60mA
    Battery life:10 years
    Sound level:﹥85dB
    Low battery threshold:2.5±0.1V
    Alarm mode: Siren with flash(Buzzer & Red LED)
    Big test button for easy recommended monthly testing
    CO Alarm concentration:
    Gross weight: 0.295KG
    product size:135mm*35mm
    Execute Criterion: UL217/UL2034

    Wifi Module

    Working Voltage:DC 6V battery (replaceable)

    Low voltage threshold:5.2V

    Lifespan>3 years

    Alarm mode:LED & buzzer & APP alarm


    Fire protection grade :V-0

    Frequency range:2412-2472MHz

    Antenna gain:2. .5dB

    Max. Radio Transmission Power: 13dB


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