Combination Carbon Monoxide Smoke Detector with LCD Display Human Voice Alarm Battery Operated Smoke CO Detector

• [CO & Smoke Combination Detector] With advanced electrochemical carbon monoxide sensor and a photoelectric sensor, the detection of CO and smoke are accurate
• [Human Voice Warning Alarm] When dangerous smoke or CO concentration is detected, it will warn you with a loud human voice sound
• [LCD Display Screen] Can clearly indicate real-time carbon monoxide concentration in the surrounding air and remaining battery
• [Battery Power Supply] Powered by 3 * 1.5V AA (not included), no need to charge, no messy wires, convenient to use
• [Easy to Install] Comes with one bag of screws, easy to install the detector on walls of bedroom, living room, kitchen, etc.

Specification:

• Material: ABS
• Detection Gas Type: CO, smoke
• Alarm Mode: Flash + loud alarm pattern 
• Smoke Sensor Type: Photoelectric
• CO Sensor Type: Electrochemical
• Working Temperature: -10?~60?
• Relative Humidity: 10~95%R.H.
• Smoke Sensitivity: 0.1%db/m~9.9%db/m
• CO Sensitivity: 000-999 PPM
• Alarm sound: ≥85dB (1 meter)
• Alarm Concentration: 50ppm: Screen light up, 150ppm human voice alarm
• Power Supply: 3 * 1.5V AA (not included)
• Product Size: 12.6 * 12.6 * 4cm/ 4.9 * 4.9 * 1.5inch
• Product Weight: ‎162g/ 5.7oz 

Note:

• Batteries are not included.