ECOTEST DoseG Operating Manual page 39

"+", showing a mechanical center projection of
the detector that is located under a cover at the
depth of 7.2 mm. Two circular contact pads (14)
are located on the bottom cover for connecting the
charger, a window (15) for data communication
with external devices via an infrared port, and a
hook (16) for attaching a neck strap cord when
clothes with breast pockets are unavailable.
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