Combination Carbon Monoxide Smoke Alarm Gas Sensor CO & Smoke Detector for Home Security

Features: High quality electrochemical carbon monoxide sensor, it is more accurate, reliable and repeatable. Green LED flashes every 30 seconds to indicate the unit is operating properly. When a dangerous level of carbon monoxide is detected and a potential fire is detected, the red LED will flash and the alarm pattern will sound. Use MCU automatic processing technology to improve product stability. Digital display shows the level of carbon monoxide the unit is sensing Adopt high reliability electrochemical sensors and infrared photoelectric sensors for accurate detection. Memory Peak Level Button - Displays the peak CO level recorded by the alarm since it was last reset or unplugged. Simple operation, providing automatic reset. Apply for universal safety application: such as installation for rv, travel trailer, boat, home, house, natural gas detection, truck, car, garage, bathroom, kitchen area, household, office, warehouse, etc. Specification: Condition: Brand New Material: ABS Plastic Color: White Power Supply: 3 * 1.5V AA batteries Smoke: 1percent ~5percent / FT OBS Standby Current: <100ua Alarm Current: <75ma 50ppm: Alarm 60-90 minutes 100ppm: Alarm 10-40 minutes 300ppm: Alarm 3 minutes Operation Ambient Condition: 5~40 celsius , 20~90percent R.H. Size: 11.5 * 3.7cm/4.5 * 1.5in Package Weight: Approx.156g/5.5oz Package list: 1 * Smoke Alarm (battery is not included) 1 * English User Manual 2 * Expansion Plugs 2 * Screws Notes: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.