Fire Smoke Detector Home Alarm Independent Wireless Device

Product parameters
Power: 9V alkaline or carbon battery
Working current: quiescent current is less than 10uA, working current is between 20 - 25uA.
Smoke sensitivity: Meets UL 217 standard.
Working temperature: -10 Deg.C ~ + 50 Deg.C
Relative humidity: 95 percent RH ( 40 Deg.C ± 2 Deg.C ) and less
Buzzer sound level: 85 decibels at 10 feet.
Battery life: about a year.
installation method:
Choose a suitable installation area.
According to the hole of the mounting bracket, two holes are placed on the ceiling or on the wall.
Drill two holes in two holes.
Insert two plastic waist pins into the two holes and attach the back of the mounting bracket to the wall.
Insert and tighten the mounting screws until the mounting bracket is completely secure.
This detector is a closed type device and is not allowed to open. Please connect the battery and battery button and insert it into the compartment on the back of the unit.
Use the back of the detector against the mounting position and turn it clockwise, and make sure that the two screw heads have slipped into the waist hole.
Work, test and repair program:
The detector is already in operation after installation, in which state the LED above it flashes approximately once per minute.
When the burning particles are detected, the detector will emit a crisp and loud pulsation alarm until the air is calm again.