Product Features:
1、Unique Voice SpeakerUnique smoke detector and CO detector alarms distinguish between smoke alarms and CO warnings,Co alarm:Please pay attention! Discovering carbon monoxide gas”,Smoke alarm:Please pay attention! Detected fire smoke”。Verbal warning system reduces confusion and helps people maintain order.

2、Fire and CO Detection in One Unit: Equipped with photoelectric and electrochemical sensors that detect smoke and carbon monoxide, protecting your home and family from dual threats

3、Self Check Function:The smoke carbon monoxide combination detector is equipped with a fault self check function. When a fault occurs, the fault light (yellow light) will always light up to remind the device to work normally

4、3-Color LED Indicator:This detector enables early warnings with a flashing LED and loud 85 dB alarm. The red LED indicates danger, yellow indicates a malfunction or low battery, and green indicates normal operation.

5、Premium Quality Material:This smoke and CO alarm has a matte cover that feels good to the touch and is made of ABS+PC plastic that is durable and heat 

6、Zero-Risk Purchase:The combination smoke and carbon monoxide alarm complies with UL217 and UL2034 standards. We are committed to offering qualified products and best customer service. Full refund or free return within ‎‎60-day money-back guarantee, 3-year quality warranty, and lifetime technical support,Protect your home and family with smoke alarms!

Product information:
Material:ABS+Metal mesh
Alarm Output:Voice prompt, Sound, Light, LCD indication
Sensor:Electrochemical CO sensor & infrared photoelectric sensor
Work humidity:10%-95%
Alarm desity-CO:000-999PPM
Power:DC 3*1.5V AA (Include)

Package Content:
1x Combination smoke detector 
1x Set Mounting Anchors and Screws
3x1.5V Battery