Features:
【Dual High Stability Sensors】: Our and carbon monoxide is equipped with high sensitivity photoelectric sensors to detect and highly stable electrochemical sensors. This ensures accurate and reliable detection of potential dangers in your home.
【Audible and Visual Alarms】: Once either or carbon monoxide reaches the sensitivity level, our will emit a loud audible exceeding 85dB and a flashing red indicator. You will be immediately alerted to take necessary actions and yourself and your loved ones.
【Easy Installation and Maintenance】: Our and carbon monoxide is designed for easy installation and maintenance. It features an automatic self-check function to identify any malfunction, and a low warning to remind you to replace the . With a simple and elegant design, it seamlessly blends into any room decor.
【LCD Display and Intelligent Features】: The integrated LCD display shows both the and concentration levels, providing you with real- information. Our also has a built-in test button for verifying the functionality of the electronic circuit, , and .
【RFI Resistance and Design】: Our is engineered with SMT manufacturing technology, ensuring and reliability. It is resistant to electromagnetic interference (RFI) to /m-1GHz, making it suitable for various indoor environments. Its dust-proof, mothproof, and -white interference design guarantees long-lasting performance.

Specifications:
Quantity: 1 , 2 , 3 (optional)
: 4.5V (3 * 1.5V AA ,not included)
Standby Current: ≤ 98uA
Current: ≤ 75mA
Sound: ≥ 85dB (1m/39ft)
Type: Photoelectric Electrical
Low Warning:<3.
Sensitivity Sensitivity : 70ppm, alarms within 60-180minutes; 150ppm, alarms within 1050minutes; 400ppm, alarms within 4-15 minutes; 700ppm, alarms within 2-6 minutes
: 0 ° C~49 ° C (32 ° F~120 ° F)
Humidity: ≤ 95% RH (No icing or condensation)
: 5-40 ℃
Humidity: 20~90%
Product Size: 10.7 * 3.8cm/4.2 * 1.5inch

Note:
This be installed on the wall.
Due to the different display screen and effect, the actual color of the item might be slightly different from the color showed on the pictures.

Packing List:
2 x
2 x Instructions
2 x Install Screw