8
Maintenance test
• Test your smoke detectors at least once a month by pressing the test button
(C)
; all the devices will sound the alarm.
• Blow the sensors with a commercially available compressed air spray at least
once every 6 months to remove dust and dirt.
Battery
The detector works with one 9V block battery and three 1.5V AA batteries. The
9V block battery is responsible for the signaling and the three AA batteries are
needed to link the smoke detectors. Under normal circumstances, the batteries
will run for about 1 year. The low battery indicator will emit a short warning signal.
Replace all the batteries of the affected detector simultaneously.
False alarm
• Foreign particles can block the optical sensor. Blow them free using a
compressed air spray.
• Do not install the detectors too close to light fixtures and/or other electronic
devices.
• Use high-quality batteries — not rechargeable batteries.
Environmental protection information
At the end of its service life, this product must not be disposed of in normal
house hold waste. Instead, take it to a recycling centre for electrical and electro-
nic equipment.
This is indicated by the symbol on the product, the instruction manual and the
packaging. The materials are recyclable in accordance with their labelling.
Recycling the materials of used devices contributes greatly to the preservation of
the environment. Please contact your local authorities to find out the location of
the appropriate disposal centres. Always dispose of batteries at the appropriate
collection points.
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