AJAX FireProtect 2 Jeweller User Manual page 25

Do not install the detector
Outdoors. This can lead to the detector failure.
In places with low or unstable Jeweller signal strength. This can result the
connection loss.
Inside premises with temperature and humidity outside the permissible
limits. This could damage the detector.
In places with fast air circulation. For example, near fans, vents, open
windows, or doors. This may interfere with re detection.
Opposite any objects with rapidly changing temperature. For example,
electric and gas heaters. This can lead to false alarms.
In the corners of the room. This may interfere with re detection.
In bathrooms, showers, or other areas where the temperature changes
rapidly. This can lead to false alarms.
In rooms where the generation of gases/vapors/smoke is part of the
operating process. For example, in a garage, where the possibility of a
detector's alarm due to vehicle exhaust gases exists. For such premises we
recommend using a detector without a smoke sensor: FireProtect 2
(Heat/CO) .
In very dusty places or areas with a lot of insects. Insects, dust, and other
contaminants can settle on the smoke chamber lid and prevent re
detection.
Near lighting xtures, decorations, and other interior items that may
interfere with the circulation of air in the room. This may interfere with re
detection.
On surfaces that are usually warmer or colder than the rest of the room. For
example, roof traps. Temperature uctuations can interfere with re
detection.
In high or inconvenient places. Access to the Test/Mute button is required to
mute the alarm and test the detector if it's used without connection to a hub.