Home Security System Fire Detector Alarm + 9V Battery Tester CO Carbon Monoxide Gas Sensor

Features:
It is a fire smoke detector alarm, alerts and warns people to stay far away from danger field when it detected smoke.
Once triggered, the red LED will flash with a high volume alarm sound, louder than 85dB. 
Fits for areas like house, shop, hotel, restaurant, office building, school, , library, computer house, and storehouse, etc.
With the special structure design and photoelectric signal processing technology, it features with dustproof, mothproof and anti outside light interference.
Comes with an alarm test button. Press it after installation, if the buzzer beeps, then it works fine.
The photoelectric sensor is designed for early detection from all directions. Easy to install and convenient to use.


Specifications:
Supply: 1 * 9V 6F 22 Batteries Included
Standby Current: ≤10uA
Alarm Current: ≤20mA
Alarm Indication: Red LED
Sound Level: 85dB/m
Detecting Area: 20 square meters
Operating Temperature: -10°C ~+50°C
Operating Humidity: ≤95% RH
Item Size: φ10.5*3.4cm/φ4.13*1.34in
Item Weight: 69g/2.41oz
Package Size: 10.6*10.5*3.6cm/4.17*4.13*1.41in
Package Weight: 91g/3.20oz   


Package List:
1 * Smoke Detector Alarm
2 * Mounting Screws
1 * User Manual
1 * 9V 6F 22 Batteries Included