Start-Up; Inserting Batteries - HomeMatic HM-Sec-SD Mounting Instruction And Operating Manual

the detector can also be mounted using the two
supplied spacers to create a gap between the
ceiling and the base. The two fixing apertures
corresponding to the spacers should be used for
mounting (see diagram).
Furthermore, the smoke detector can be fixed in
place using a standard installation box. The two
installation box fixing holes should be used for this
purpose.
- Avoid mounting the smoke detector in the vicinity
of solid steel beams, large metal surfaces, etc. as
they could significantly inhibit the transmission or
receipt of the wireless signal. Moving the detector
by just a few centimetres can often be a great help
here.
7

Start-up

7.1 Inserting batteries

Insert three new LR6 batteries (mignon/AA) in the
battery compartments, observing the polarity shown
(see sketch).
Once the batteries have been inserted, the wireless
module LED lights up briefly red, green and orange in
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