Garmin GT21-TH – Stainless Steel Thru-Hull DownVu 500 W (CHIRP 260/455 kHz) Traditional 600 W (50/200 kHz) Transducer with Temp (8-pin)
This thru-hull transducer provides ultra-clear sonar pictures of objects, structure and fish that pass below your boat. This traditional sonar and CHIRP DownVü transducer is optimized for depth performance and rough conditions.
The CHIRP DownVü element has a power rating of 500 W and operating frequencies of 260/455 kHz. The traditional sonar has a power rating of 600 W and operating frequencies of 50/200 kHz. It includes a built-in fast-response temperature sensor. For hull deadrises less than 25 degrees.
GT21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.
Weight: 4.79 lbs. (10.55 kg) Cable length: 30 ft Number of pins on connector: 8 Dimensions: Transducer: 9.0 x 2.5 x 1.6 in (228 x 62 x 41 mm) Thru-hull Stem: Ř1.0 x 5.3 in (Ř24 x 135 mm) Thru-hull fairing block: 12.7 x 4.6 x 2.5 in (323 x 116 x 64 mm) Frequency: Traditional: 50/200 kHz DownVü: CHIRP 245-275 kHz and CHIRP 445-465 kHz Transmit power: Traditional: 600 W DownVü: 500 W Max Depth: Traditional: 1,500 ft DownVü: 1,000 ft Beam Width (°) LF/HF (-3dB): Traditional: 40/10 DownVü: 2.0x51@260 1.4x29@455 Read water temperature: Yes