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

Features：
[ & Smoke Combination Detector] With advanced electrochemical carbon monoxide sensor and a photoelectric sensor, the detection of and smoke are accurate.  
[Human Voice Warning Alarm] When smoke or concentration is detected, it will warn you with 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 , 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.

Specifications：
Color: Multicolor
Material: ABS
Detection Gas Type: , smoke
Alarm Mode: Flash + loud alarm pattern 
Smoke Sensor Type: Photoelectric
Sensor Type: Electrochemical
Working Temperature: -10℃~60℃
Relative Humidity: 10~95%R.H.
Smoke Sensitivity: 0.1%db/m~9.9%db/m
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.

Package List：
1 * Detector
1 * Bag of Screws
1 * User Manual

• [ & Smoke Combination Detector] With advanced electrochemical carbon monoxide sensor and a photoelectric sensor, the detection of and smoke are accurate.
• [Human Voice Warning Alarm] When smoke or concentration is detected, it will warn you with 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 , no