Instructions / Assembly

Installing Nest Detect on a wall
• Choose a flat spot on the wall or in a corner of a
room. For more information on mounting heights,
refer to page 14.
• Make sure Nest Detect is pointed toward the area
you want to keep track of. For more information on
motion detection range, refer to page 14.
• To install Nest Detect in a corner, take off the flat
backplate and use the included corner backplate
for installation.
Troubleshooting offline issues
If one or more Detects are listed as offline in the
Nest app after installation, they may be too far from
Guard to connect. You can install a Nest Connect
(sold separately) to bridge the gap, or try moving
your Detects and Guard closer together.
False alarms
The following may cause unintended alarms:
• Pets that walk, climb or fly above 3 feet (1 m)
• Pets heavier than 40 pounds (18 kg)
• Heat sources like electric heaters, heat vents
and fireplaces
• Cold sources like drafty windows, air conditioners
and AC vents
• Curtains near windows that may move while Nest
Guard is armed
• Direct sun exposure: the front of Nest Guard and
Nest Detect should not be placed in direct sunlight
• Party balloons left unattended: they may drift into
the field of view of your sensors
• Insects that may come very close to the sensor
• Vibration or movement caused by pets bumping Nest
Guard when it’s set to Away and Guarding
• Wireless access points within 6 feet (2 m) of
Nest Detect
Special considerations
• You can have up to 20 Nest Detects working with your
Nest Guard. Go to nest.com/howmany for updates
• Place Nest Guard where it can’t get bumped. When
Nest Guard is set to Away and Guarding and it moves,
the alarm may sound.
• Nest Guard should be installed in accordance with
the National Electrical Code, ANSI/ NFPA 70.
• In some installations the magnet may need to travel
up to 1.97" (50 mm) for Nest Detect to detect that a
door or window is open.
MORE ABOUT GUARD AND DETECT
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