What you'll see and hear from Nest Protect

When it comes to your safety, sometimes you need more than just a beep or loud siren. Nest Protect speaks and lights up so you don't have to guess what it's trying to tell you. You'll also get an alert on your phone or tablet (as long as your Protect has a working Wi-Fi connection). Alerts will also be saved in the Nest app in Messages. If you ever need to review them, just
click or tap on the Messages icon in the Nest app home screen.

The table below shows you what you can expect to see and hear from your Nest Protect, what the lights and messages mean, and what you should do when you see and hear them.

During setup

Nest Protect will guide you through the setup process using its blue light ring and voice.

WHAT YOU HEAR WHAT YOU SEE ON
NEST PROTECT
WHAT IT MEANS WHAT TO DO

"Hi."

Listen to it now

Blue pulses

Nest protect glow blue image.

Nest Protect is
ready for setup.

Nest Protect will
walk you through
the setup steps.

How to install Nest
Protect

 

Manually testing Nest Protect

WHAT YOU HEAR WHAT YOU SEE ON
NEST PROTECT
WHAT IT
MEANS
WHAT TO DO

"Press to Test."

Listen to it now

Blue pulses

Nest protect glow blue image.

After you press the
Nest button, Nest
Protect pulses blue
to indicate that it
will test its sensors, batteries, Wi-Fi
connection and interconnection with
other Nest Protects.
2nd gen Nest
Protects will also
run Sound Check on
their horn and
speaker.

Nest Protect will tell
you when the test is complete and what
the results of the
test were.

How to test
Nest Protect

 

Heads-Up and Emergency Alarms

Nest Protect uses its voice to let you know about potential danger and where in your home it's located. It will also send an alert to your phone or tablet as long as it is connected to Wi- Fi and the Internet.

Nest Protect first gives you an early warning when it detects that smoke or carbon monoxide levels are rising. This is what we call Heads-Up. If the smoke or carbon monoxide levels are at critical levels, Nest Protect will sound the alarm, pulse red and let you know where the problem is.

WHAT YOU HEAR

WHAT YOU SEE ON
NEST PROTECT
WHAT YOU SEE ON
YOUR MOBILE
DEVICE

WHAT IT MEANS 
AND WHAT TO DO

"Heads-Up. There's
smoke in the (room
name). The alarm
may sound."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Heads-Up: There's
smoke • (room
name)

Smoke levels are
rising.

Put out the source
of the smoke. Then
use the Nest app or
press the Nest
button to silence
the alert.

"Heads-Up. There's
carbon monoxide in
the (room name). The
alarm may sound."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Heads-Up: There's
carbon monoxide •
(room name)

Carbon monoxide
levels are rising.

Open a window or
door to get some
fresh air. Then use
the Nest app or
press the Nest
button to silence
the alert.

"(Smoke or carbon monoxide) alarm
silenced."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Alarm silenced. The
alarm will sound
again if the
problem continues.

You have silenced
the alarm
temporarily.

Make sure you are
safe and put out
the source of the
smoke or carbon
monoxide.

(Alarm Sound)
"Emergency. There's
smoke in the (room
name)."

Listen to it now

Red pulses

Nest Protect with pulsing red ring

Emergency: There's
smoke • (room
name)

The smoke in the
room has reached emergency levels.

Get out of the
house immediately.

What to do if
Nest Protect
detects smoke

(Alarm Sound)
"Emergency. There's
carbon monoxide in
the (room name).
Move to fresh air."

Listen to it now

Red pulses

Nest Protect with pulsing red ring

Emergency: There's
carbon monoxide •
(room name)

The carbon
monoxide in the
room has now
reached emergency
levels.

What to do if
carbon monoxide is
detected

1. Press the Nest
button to
silence/reset Nest
Protect.
2. Call your fire
department or 911.
3. Move everyone to
fresh air.
4. Do not re-enter
the premises until
the emergency
services tell you to.

"(Smoke or carbon monoxide) alarm
silenced."

Listen to it now

Red pulses

Nest Protect with pulsing red ring

Alarm silenced. The
alarm will sound
again if the
problem continues.

You have silenced
the alarm
temporarily.

What to do in case
of a smoke alarm

What to do in case
of a CO alarm

"The smoke alarm is
over in the (room
name)."

Listen to it now

Green pulses

Nest protect with pulsing green ring

Smoke clearing •
(room name) The
smoke level is
decreasing.

Conditions are
returning to normal.

Make sure you're
safe and have put
out the source of
smoke.

"The carbon
monoxide alarm is
over in the (room
name)."

Listen to it now

Green pulses

Nest protect with pulsing green ring

Carbon monoxide
clearing • (room
name) The carbon monoxide level is decreasing.

Conditions are
returning to
normal.

Make sure you're
safe and have dealt
with the source of
the carbon
monoxide.

 

Disclaimer: In Australia, the light ring may illuminate only on the Protect that detects smoke or carbon monoxide, but interconnected Protects will still sound an alarm.

Note: Nest Protect will only speak the room name if you selected one of the standard names from the list during setup, or if you chose a standard name and added a custom label. If you use a custom name, your Nest Protect will not speak a room name.

       Learn more about Nest Protect names and labels 

When Nest Protect needs your attention

If a problem has been identified during Self Test, Nest Protect uses its yellow light to communicate that it requires your attention. As with Heads-Up and Emergency Alarms, Nest Protect will also send an alert to your phone or tablet as long as it's connected to Wi-Fi and the Internet. It may be that its batteries are getting low, its sensors have failed or Nest
Protect is about to expire.

 

WHAT YOU HEAR WHAT YOU SEE ON
NEST PROTECT
WHAT YOU SEE ON
YOUR MOBILE
DEVICE
WHAT IT MEANS
AND WHAT TO DO

"The battery is low in
the (room name).
Replace the battery
soon."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Low battery (home
name: Protect
location).

The battery is low. Replace the battery
soon.

Your Nest Protect
will need new
batteries in the
coming months.

Nest Protect
batteries (or
backup batteries
for Nest Protect
Wired) are low.

Replace Nest
Protect batteries
soon.

Learn more

"The battery is very
low in the (room
name). Replace the
battery now." Single
chirp every 30
seconds.

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Replace the battery
now. (home name:
Protect location).

Your Nest Protect
needs new
batteries
immediately. Only a
few days of battery
life remain.

Nest Protect will
start chirping soon
— day and night.

Nest Protect
batteries are very
low. It will chirp.

Replace Nest
Protect batteries
now.

Learn more

"The sensors have
failed in the (room
name). Replace Nest Protect now."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Smoke sensor
failure (home name:
Protect location).

The Nest Protect's
smoke sensor has
failed.

Nest Protect has
tested its smoke
sensor and a
problem has been
detected.

Clean your Nest
Protect according
to the instructions.

How to clean
Nest Protect

If the problem
persists, replace it.

When to replace Nest
Protect

"The sensors have
failed in the (room
name). Replace Nest Protect now."

Listen to it now 

Yellow pulses

protect 2nd gen yellow ring

Carbon monoxide
sensor failure
(home name:
Protect location).

The Nest Protect's
carbon monoxide
sensor has failed.

You need to replace
Nest Protect.

Nest Protect has
tested its CO
sensor and a
problem has been
detected.

Replace your Nest
Protect now.

"Nest Protect has
expired. Replace
Nest Protect now."

Two chirps every 60 seconds.

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

 

Nest Protect
has expired.

Replace your Nest
Protect now.

"Nest Protect is disconnected from
the Internet."

Listen to it now

Yellow pulses

protect 2nd gen yellow ring

Nest Protect is
offline.

Nest Protect is no
longer connected to
the Internet.

Check your Wi-Fi
network
 and
Internet
connection.

"The sensors have
failed."

Listen to it now

No lights

There is a problem
with the light ring.

Nest Protect's light
ring no longer
works.

Replace your Nest Protect now.

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