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Product features
• Battery-operated smoke detector with photoelectric scattered-light
principle
• Automatic self-test of the smoke development
• Loud pulsing alarm sound approx. 85 dB(A)
• Battery replacment display (1)
• Soiling/Fault display (1)
• Test button for function test (2)
• Battery compartment check: If no battery
is inserted in the smoke detector, it
cannot be latched into the base
• Polarity reversal protection: Device
destruction through incorrect battery
connection impossible
• VdS approval: Certified and approved by the German "Verband der
Sachversicherer (VdS)"
Functional principle
The smoke detector recognises fire early on due to the smoke development.
It operates on the scattered-light principle. Light transmitters and receivers
are positioned in the measuring chamber so that the emitted light signal of
the transmitter cannot impact the receiver (photo cell) directly. If smoke
enters the smoke chamber, the light signal is scattered by the floating
particles contained in the smoke. The scattered light rays impact the photo
cell where they are converted into electrical signals which trigger the alarm.
The function of the smoke evaluation is checked constantly. Any faults are
indicated by a fault signal (signal sound and LED).
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