Garmin GTM 21 Reviews
Product Type: Garmin car accessories
Description:Model ID 901010 / Garmin GTM 21 - TMC module for GPS receiver / The GTM 21 is an integrated FM TMC (Traffic Message Channel) traffic receiver, antenna and cigarette lighter adapter. It receives digital information (where available) on traffic and road construction tie-ups that ... more
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Technical Details for Garmin GTM 21
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