Garmin 50/200KHz /T 12 Lo-Pro TH Xdcr 8 Pin. This 8-pin receiver module connects to the transducer of your choice (the receiver accepts both 50 and 200 kHz signals). The mode button on your receiver selects the transmit power and the high/low alerts of the active transmit. When active the red and green LEDs on the receiver display are solidly lit so you can easily see the active transmitting boat or aircraft. This is the same technology that is used in your TV and cable box. Specifications for Garmin 50/200KHz /T TH Xdcr 8 Pin: Manufacturer: Garmin Additional Features: 12 Lo-Pro TH Xdcr Package Contents: Garmin 50/200KHz /T TH Xdcr 8 Pin Garmin 010-10982-21: 50/200KHz /T 12 Lo-Pro TH Xdcr 8 Pin