Use the plastic tab to gently open the battery compartment.
First alert smoke and carbon monoxide alarm manual battery replacement.
When carbon monoxide levels are detected the first alert carbon monoxide detector sounds an 85 decibel siren.
It offers the same functionality you expect from first alert with a new design that takes up less space.
Models 9120 printed in mexico 9120b m08 0134 003 k1 04 07 all first alert and brk smoke alarms conform to regulatory requirements including ul217 and are designed to detect particles of combustion.
Learn how to replace the batteries in a smoke or co detector.
Remove the old battery.
The co smoke alarm is battery operated allowing you to easily install it.
Simple and easy to use.
The photoelectric sensor detects smoke produced by smoldering fires and minimizes false alarms from cooking smoke or shower steam.
Battery operation eliminates wires.
In this article you ll learn how to replace a 9v battery in a smoke alarm.
All brk and first alert smoke alarms conform to regulatory requirements including ul217 and are designed to detect particles of combustion.
Alarms with removeable non sealed batteries need fresh batteries about once per year.
A side load battery drawer allows for easy battery replacement without removing the alarm from the ceiling or wall.
Removing the batteries for any reason or failing to replace the batteries at the end of their service life removes your protection.
When installing the battery in your alarm make sure they match the same polarity in the battery drawer.
This smoke co alarm cannot operate without working batteries.
The first alert carbon monoxide alarm is easy to set up.
The smoke alarm will only indicate the presence of smoke that reaches the sensor the smoke alarm is not designed to sense gas heat or flames.
A low battery light and alarm alert you when battery power is running low and an end of life warning lets you know when the detector should be replaced.
How to change batteries in first alert alarms.
The first alert prc700 smoke and carbon monoxide alarm has a slim profile designed to blend more fully into the wall and out of sight.
If your alarm is sounding the low battery chirp about once per 30 60 seconds it s likely time to replace your battery.
How to replace a 9v battery.
If you are installing the smoke alarm for use by others you must leave this manual or a copy of it with the end user.
Comprehensive detection for your home or office.
Look at your 9v battery to identify the positive and negative contacts similar to what is shown in the image.
