User's Manual

OPERATING INSTRUCTIONS
When Nest Protect smoke and carbon monoxide (CO) alarm has something to say, it will speak to you in
words and colors instead of just beeping. It has two kinds of voice alerts: Heads-Up and emergency alarms.
• Nest Protect can see smoke or carbon monoxide levels rising. So before it turns on an emergency
alarm, Nest Protect gives you a friendly spoken Heads-Up to warn you in advance. It pulses yellow and
speaks to you, telling you what and where the danger is.
• When smoke or carbon monoxide reach dangerous levels, Nest Protect tells you where the
emergency is and pulses red, in addition to making a loud alarm sound. This is an emergency alarm.
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