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       The SPU plugs directly into a CMS (Changeable Message Sign) so that CMS's can be rapidly deployed quickly, or easily moved from vehicle to vehicle without hardwiring the vehicle.

     Features:
Watertight, Polycarbonate enclosure.
LED indicator to provide visual status.
900MHz, internal, Spread Spectrum modem with built in antenna.
Two, 1A latching relays to control, for example, warning strobes.
Three inputs for monitoring external signals.

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Copyright © 2000 Safety Technologies, Inc.
Last modified: April 13, 2002