

The Garmin GT40-TM is a transom-mount combined DownVü and SideVü transducer rated at 500W. It operates in the 455khz and 800kHz bands.
This model also acts as a conventional 500W non-CHIRP transducer at 77 kHz and 200 kHz.
| Feature | Specification |
|---|---|
| Part Number | 010-01963-01 |
| DownVü and SideVü CHIRP Frequency Bands | 425-485 kHz; 790-850 kHz |
| Non-CHIRP Frequencies | 77/200 kHz |
| Power Rating | 500W RMS CHIRP; 500W RMS non-CHIRP |
| Housing | Transom mount, for transom angles from 0-70° |
| Beam Width | 1.1°x53° @ 455kHz; 0.7°x30° @ 800kHz; 15/45° at 200/77khz |
| Temperature Sensor | Integrated into transducer |
| Transducer Cable | 30 ft with Garmin orange 12-Pin connector |
| Hole Size | Holes needed for bolts, transducer cable |
| Weight | 830g (1.82lb) |
| Overall Height | 52mm (2.0") |
| Overall Length | 212mm (8.4") |
| Hull Material | Any |