Questions and Answers for First Alert Battery Powered Carbon Monoxide Alarm with Digital Display

A:  2-1/2 inches center to center screw holes

A:  2.5 inches

A:  2.5 inches

A:  Any AA battery is acceptable. Note the life of the battery may vary between manufacturers. My belief is that First Alert receives an advertising fee from Energizer for their recommendation.

A:  No, although I have had better luck with Duracell batteries lasting longer than Energizer batteries.

A:  I ordered this alarm on 2/24/17, picked it up at Home Depot Encinitas on 3/2/17 and installed it myself on 3/8/17. The alarm came with 2 AA Duracell MN1500 batteries. On the back of my alarm under the "Warning" sticker it states: "Replacement Batteries Everready E91 - use of a different battery may have a detrimental effect on alarm operation." It mentions nothing about using Energizer AA batteries. For your information, about 3 weeks ago my alarm (with its original Duracell AA batteries) began to chirp after 9+ months of operation. I then installed 2 new Duracell AA MN1500 batteries. I have experienced no problems with the alarm and the Duracell batteries that have been installed. Hope this information is helpful to you.

A:  When you test the unit it displays several ppm CO levels starting with 30 ppm. If the unit detects enough CO to sound the alarm it will display the value it has detected. Note there is a CO memory feature which displays the peak CO recorded during an alarm. This value can be displayed by pressing the Peak Level Button. If no alarm has sounded, pressing the button will display 0 ppm.

A:  When you test the unit it displays several ppm CO levels starting with 30 ppm. If the unit detects enough CO to sound the alarm it will display the value it has detected. Note there is a CO memory feature which displays the peak CO recorded during an alarm. This value can be displayed by pressing the Peak Level Button. If no alarm has sounded, pressing the button will display 0 ppm.

A:  No, this does not report below 30 ppm.

A:  I DONT SEE WHY IT WOULD NOT.BUT IF IT ACTIVATES STOP USING YOUR VEHICLE AND HAVE YOUR EXHAUST SYSTEM REPAIRED ASAP.

A:  It can, but its a plug-in with battery backup!

A:  YES IT CAN. I HAVE MINE ON THE CEILING IN MY BASEMENT.

A:  YES. MINE IS MOUNTED ON BASEMENT CEILING.

A:  Yes but not recommended. That placement does not detect well enough.

A:  Carbon Monoxide alarms should not be installed in the kitchen especially within 5 feet of a cooking device per the manufacturers recommendation.

A:  Yes, it flashes battery status about once every two seconds.

A:  The flashing batterysystem is a detector that unit is working and what level of the battery is at so you know battery is good

A:  Replace the batteries. Google "first alert monoxide alarm instruction manual".

A:  First Alert's website has the instructions. There also very bried instructions inside the door to the batteries.

A:  This model has a seven year life. If it is beeping and displays END its time to buy a new one.

A:  The number of beeps may be decoded using the "ALARM CODE" instructions printed on the rear side's label.

A:  Manuals are available on line.