Quick Set Up Guide
We urge you to read this entire manual in the sequence it is presented. But, if you only read one part of this manual initially, read these two pages!
Listed below are six easy steps for setting up your Nighthawk CO alarm. Please read the entire guide for complete information.
Setting up your CO alarm for first time operation:
Step 1
Determine the best location for your CO alarm(s). Usually this is in or near bedrooms. Refer to page
Step 2
If your CO alarm is equipped with a power cord, mount the alarm on the wall at eye level using the hardware provided. Eye level is the best position to easily see the digital display. If your CO alarm is equipped with a direct plug, simply plug in (you can rotate the plug if neces- sary) For hardwire units and for detailed instructions on mounting all alarms, refer to page
Step 3
Plug the CO alarm into a standard, unswitched 120 volt AC electric out- let. If you have a direct plug model, mount the CO alarm with digital display at the top. You will hear the alarm sound briefly to indicate the unit is receiving power. Refer to page
Step 4
You will first see three eights 
in the digital display indicating the CO alarm is warming up. After approximately 30 seconds, the first read- ing will appear on the digital display. The number on the digital display should be zero (0). If not, see page
Quick Set Up Guide
Step 5
Make sure the red dot in the digital display is blinking. Then test the alarm’s operation by pressing the Test/Reset button and releasing. Within 15 seconds you will hear 4 quick beeps – 5 seconds off – then 4 quick beeps. For complete testing information, refer to page
Step 6
While testing the alarm, have someone else check that the alarm can be heard easily from the sleeping areas. The CO alarm should be located where it can wake you if it alarms at night. See page
Caution: Continuous exposure to the loud 85 decibel alarm at close range over an extended period of time may cause hearing loss.
That’s it. Your Nighthawk CO alarm is now monitoring for the presence of carbon monoxide.
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