Installation Guide

WARNING
Wireless communications
• Nest Guard and Nest Detects are engineered to
communicate with each other if they’re within
50 ft of each other in a home.
• Some features of a home may reduce the effective
range, including the number of floors, number and
size of rooms, furniture, large metallic appliances,
construction materials, and other features like
suspended ceilings, ductwork and metal studs.
• Nest Guard’s and Nest Detect’s specified range
is for comparative purposes only and may be
reduced when installed in a home.
• Wireless transmissions between buildings will
not work and the alarms will not communicate
properly.
• Metal objects and metallic wallpaper may
interfere with signals from wireless alarms.
Test your Nest products first with metal doors
opened and closed.
• Nest Guard and Nest Detect have been
specifically designed and tested to comply
with the standards for which they are
Listed. While Nest’s wireless network may
route signals through other Nest or other
Thread-compatible products* to optimize
network reliability, you need to ensure every
Nest Detect can communicate with Nest
Guard directly.
To make sure Nest Detect can directly communicate
to Nest Guard, completely power off your other Nest
or other Thread- compatible products before
installing or relocating Nest Detect. Nest Detect
will flash yellow 5 times during installation if it
cannot directly communicate to Nest Guard. Nest
Detect’s light ring will pulse green when it’s connected
to Nest Guard. To learn more about powering off
your Nest or other Thread-compatible products,
please see the user guides included with your
devices, or support.nest.com, for more information.
Additional certification details
Nest Guard and Nest Detect were designed to meet
rigorous UL security standards, and were tested for
compliance by Underwriters Laboratories for residential
use only. Nest Guard was evaluated by UL for use as a
burglar alarm control panel and PIR intrusion detector.
Nest Detect was evaluated by UL as a magnetic contact
switch and a PIR intrusion detector.
To meet UL specifications, please enable Limited Settings
within the app and install Nest Guard and Nest Detect
as the primary means of intrusion detection within the
protected area of the household. Enabling Limited Settings
limits the alarm countdown to 120 seconds maximum
and disarm time to 45 seconds maximum, and allows you
to arm with a passcode. Nest Guard will also provide an
audible warning tone once per minute when there is an
issue that needs attention.
For UL certified installations the adhesive is suitable
for use on Galvanized steel, Enameled steel, Nylon -
Polyamide, Polycarbonate, Glass Epoxy, Phenolic - Phenol
Formaldehyde, Polyphenylene ether/Polystyrene blend,
Polybutylene terephthalate, Epoxy paint, Polyester paint,
Coated epoxy paint (Coating is 3M Adhesive Promoter 111),
Acrylic urethane paint, Epoxy/Polyester paint.
Nest Detect in Reduced Motion Sensitivity mode has
been evaluated by UL only for motion detection of people.
The UL certification of Nest Guard and Nest Detect does
not include an evaluation of the Nest app, software
updates, Nest Connect’s use as a range extender, and
Wi-Fi or cellular communication to the Nest Service
or to a professional monitoring center.
* Search for A0024 (Nest Guard) and A0028
(Nest Detect) in the UL Certification Directory
(www.ul.com/database) to see the list of
products evaluated by UL to route signals on the
same network as Nest Guard and Nest Detect.
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