GT21-TH Thru-Hull Traditional and CHIRP ClearVu Transducer

GT21-TH Thru-Hull Traditional and CHIRP ClearVu Transducer

3.1 out of 5 Customer Rating
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Ships from supplier, typically 2-3 weeks.

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Model # 17596305 Mfg # 010-01962-10
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Displays clear and crisp fish arches with superior target separation.

Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVü scanning sonar with a stainless steel stem, this thru-hull mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat.

GT21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions.


  • Style: Thru-hull
  • Cable Length: 30'
  • Connector: 8-pin
  • Maximum Deadrise Angle: Up to 25° deadrise
  • Monitors: Depth and Temperature
  • Transmit Power: Traditional 600W; ClearVü 500W
  • Frequency Range: Traditional 50/200kHz; ClearVü CHIRP 260kHz (245-275kHz) and 455kHz (445-465kHz)
  • Max. Depth: Traditional: 1,500'; ClearVü: 1,000'
  • Beamwidths: Traditional (40°/10°); ClearVü (2.0°x 51° @ 260kHz) & (1.4°x 29° @ 455kHz)
Beam Traditional 40/10
Deadrise Angle 0 to 5 Degree
Frequency 50/200kHz+ DownVu CHIRP
Material Stainless Steel
Maximum Depth Traditional 1500 Feet , DownVu 1000 Feet
Sonar CHIRP Sonar , Depth , Temperature , Multiple Beams , Variable Frequencies
Transmit Power 600 Watts Traditional/500 Watts DownVu
Type Thru-Hull
Cancer and Reproductive Harm -