For many years the SDU-5/E was the
standard emergency strobe light. But it needed seperate IR filter
or a seperate Blue filter either of which could easily be lost.
The Mercury battery for the SDU-5/E
went obsolete (but I make an adapter
for common batteries) and this also must have been a motivation to come out with a new adapter.
The OD outer cover for the MS02000M can be slid up and acts as both a
beam restrictor and as a blue filter and works in a manner very similar
to the blue filter for the SDU-5/E. When the blue filter is not
in use a built in IR filter can be swung over the strobe lens.
Instead of a custom military battery two common AA batteries are
used. The problem with this is that Alkaline batteries loose a
lot of capacity when at or below freezing temperatures.
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, Survival Equipment
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started 29 Nov 2006