{"product_id":"garmin-gt21-th-thru-hull-transducer-010-12219-10","title":"Garmin GT21-TH Thru-Hull Transducer 8 pin","description":"The Garmin GT21-TH is an 8-pin thru-hull transducer that pairs traditional 50\/200 kHz sonar with Garmin ClearVu CHIRP scanning sonar (260 and 455 kHz). The 600 W traditional channel reaches depths of 1,500 ft and excels in rough conditions, while the 500 W ClearVu channel produces picture-like images of structure and fish directly beneath the boat to 1,000 ft. A built-in fast-response water temperature sensor is included. The transducer ships with a fairing block, isolation plate and bushings, so it can be flush-mounted on hulls of up to 25 degrees deadrise and on metal hulls, and Garmin requires at least one anti-rotation bolt to be fitted. It connects via an 8-pin plug to compatible Garmin STRIKER, ECHOMAP and GPSMAP chartplotters and fishfinders.","brand":"Garmin","offers":[{"title":"Default Title","offer_id":55952512581972,"sku":"010-01962-10","price":424.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/9702\/3060\/files\/legacy-065533fd.jpg?v=1781902672","url":"https:\/\/hudsonmarine.co.uk\/products\/garmin-gt21-th-thru-hull-transducer-010-12219-10","provider":"Hudson Marine Electronics","version":"1.0","type":"link"}