2 in 1 CO Smoke & Carbon Monoxide Detector Alarm for Smart Home Alarm Security 433MHz Ring Alarm System


3000 in stock

SKU: 4001022519062 Category:


Smoke & Carbon Monoxide Detector with 433Mhz integration through SONOFF Bridge to your Home Assistant.


  1. Support three alarms: smoke & CO, wireless 433 transmission network alarm.
  2. Full snap-in patented structure, simple installation, no need for debugging and wiring.
  3. 360 degrees smoke detection and alarm, no dead angle, reliable.
  4. Built-in high-sensitivity sensing technology, reliable and safe.
  5. Built-in 110 dB sound and light alarm reminder, effectively prompting people to evacuate.
  6. Ultra-low-power microcontroller + photoelectric principle technology, long standby life battery use for 3 years.
  7. Adopt high-performance photoelectric two-way scattering patented technology of two-receiving & one-transmitting, stable, reliable and accurate.
  8. Low Voltage Alarm: When the battery voltage is lower than 6.8V, a warning sound is issued to remind the user to change the battery.
  9. Rotary detachable top cover design to facilitate cleaning and battery replacement.


  1. This smoke sensor can work alone to implement a stand-alone alarm.
  2. To integrate for remote notifications on phone or through Home Assistant, smoke detector needs to work with Sonoff RF bridge.
  3. Battery is not included
  • Powered Supply: DC 9V (Not Included)
  • 433MHz Range: 200M
  • Static Current: 20uA
  • Alarm Current: 30mA
  • Alarm Loudness: 85dB
  • Colour: White
  • Material: ABS

Package Contents:

  • 1 * Carbon monoxide smoke composite detector
  • 1 * Manual



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