Garmin GTM 20

The GTM 20 is an integrated FM Traffic Message Channel (TMC) traffic receiver, antenna and 12-volt power adapter. It receives digital traffic information for North America,* allowing your compatible Garmin device to route you around accidents, construction and other obstacles to save you time.

• Covers North America.
• Combines antenna, traffic link and 12-volt power adapter.
• No professional installation required — just plug it in and drive.
• Real-time traffic data — no waiting for scheduled traffic news updates or random alerts.
• Won't interfere with music or news on your FM car radio.

Specifications

• Physical dimensions: cable cord 5.4' (164.6 cm); cigarette lighter adapter 4.5" (11.43 cm); 18-pin plug 1" (2.54 cm); total length 70.3" (178.56 cm)
• Interface: connects to GPS device via 18-pin flat plug
• Weight: 2.7 ounces (76.5 grams)
• FM tuner band: 88 to 108 Mhz
• Portable: Yes