The STX-165 panel mount mode C transponder provides 200 watts nominal output with a 1/2 3ATI panel cutout configuration and a bright LED display. It's equipped with a built-in altitude encoder and three tier functions: elapsed flight time, up timer, and down timer. If the user installs an optional STP 78 OAT probe (305561-91), the unit can also display density altitude (DALT), current outside air temperature in Celsius or Fahrenheit, and an icing alert.

• Mode C transponder that provides 200 watts nominal output
• 3ATI panel cutout with a bright OLED display that automatically dims in low lightâideal for nighttime operations
• Three timer functions, elapsed flight time, up timer, and down timer
• Behind-the-panel depth of only 7.34"
• Requires low currents - making it perfect for LSA, glider and UAV operations
• For added DALT, current outside air temperature and icing alert functions, the user can add an OAT probe, part #305561-91

Kit includes

• Transponder
• 9 pin sub D connector
• Size 1 D connector clamp
• 15 pin sub D connector
• Size 2 D connector clamp
• SMA connector