Smartwares RM218 Mode D'emploi page 13

If these actions do not solve the problem, do not try to repair it
yourself. If the problems occur within the warranty period and are
under warranty conditions, return the smoke alarm device plus valid
proof of purchase with a clear description of the complaints to:
SPECIFICATIONS
Power
Operating temperature : 4 ~ 38°C
Operating humidity
Smoke sensor
Alarm volume
Pause time
: For indoor use only.
: Read the manual before use, and keep it in a safe
place for future use and for product maintenance.
: 3V DC CR123A Lithium
(not replaceable battery)
: 25 ~ 85%
: Optical
: > 85db(a) at 3 meters.
: approx. 10 minutes
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