{"product_id":"qbp521134","title":"Garmin Airmar R109LHW Thru-Hull Transducer, 2kW, 38-75kHz and 150-250kHz, Depth \u0026 Temp","description":"\u003ch6\u003eOverview\u003c\/h6\u003e\u003cp\u003eThe Garmin 010-12182-20 is a 2 kW thru-hull transducer built around the Airmar R109LHW element, with CHIRP coverage across 38 to 75 kHz and 150 to 250 kHz.\u003c\/p\u003e\u003cp\u003eIt pairs a low band for deep-water sounding with a high wide band that holds a 25° beam across the range, which helps when you want more coverage under the boat while working shallower water.\u003c\/p\u003e\u003cp\u003eThe urethane housing uses a fairing-style mount to account for hull deadrise up to 22°, and it also provides depth and fast-response water-temperature sensing.\u003c\/p\u003e\u003ch6\u003eKey features\u003c\/h6\u003e\u003cul\u003e\n\u003cli\u003e2 kW dual-band CHIRP: 38 to 75 kHz (low) and 150 to 250 kHz (high wide)\u003c\/li\u003e\n\u003cli\u003eHigh wide band keeps a constant 25° beam for broader coverage in shallower depths\u003c\/li\u003e\n\u003cli\u003eLow band beamwidth varies across the range (19° to 10° port-starboard; 10° to 5° fore-aft)\u003c\/li\u003e\n\u003cli\u003eThru-hull, external-mount housing with fairing-style mounting for deadrise up to 22°\u003c\/li\u003e\n\u003cli\u003eDepth and water-temperature sensing\u003c\/li\u003e\n\u003cli\u003e49 ft (15 m) cable for routing to a sonar module at the helm\u003c\/li\u003e\n\u003cli\u003eBare-wire termination for hard-wiring to compatible sonar equipment\u003c\/li\u003e\n\u003cli\u003eXducer ID technology for transducer identification on supported systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch6\u003eCompatibility and fit\u003c\/h6\u003e\u003cp\u003eThis is a dual-band, CHIRP-ready transducer. It requires sonar hardware that supports a 2 kW transducer and the 38 to 75 kHz and 150 to 250 kHz bands. Confirm both frequency support and your sounder’s wiring method before committing to the hull cutout.\u003c\/p\u003e\u003cp\u003eThe housing is listed as compatible with common hull materials, but thru-hull installs still depend on proper bedding, access inside the bilge, and good cable routing. Plan the location so the face stays in clean water at speed and is clear of strakes, steps, and trailer bunks.\u003c\/p\u003e\u003ch6\u003eInstallation and setup\u003c\/h6\u003e\u003cp\u003eMost thru-hull installs are a haul-out job. Measure deadrise at the mounting point and align the fairing so the transducer face sits square to the water flow. On cored fiberglass, seal the core around the hole to keep water out of the laminate.\u003c\/p\u003e\u003cp\u003eRoute the cable away from ignition wiring, alternator leads, and other high-current runs when possible. Leave a service loop so the transducer can be inspected without stressing the cable.\u003c\/p\u003e\u003ch6\u003eUse on board\u003c\/h6\u003e\u003cp\u003eThis setup fits boats that split time between deeper drops and nearshore structure. The low band handles the deeper work, while the high wide band is useful when you want coverage and clear targets in the upper water column.\u003c\/p\u003e\u003ch6\u003eMaintenance and care\u003c\/h6\u003e\u003cp\u003eInspect the outside face for growth and clean it with a non-abrasive pad as needed. During seasonal service, check the bedding line and the inside hardware for any sign of movement or seepage, especially after trailering or hard impacts.\u003c\/p\u003e","brand":"Garmin","offers":[{"title":"Default Title","offer_id":52269118226613,"sku":"QBP521134","price":4474.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/8171\/1029\/files\/1299073_qbp521134.jpg?v=1771541989","url":"https:\/\/www.qualityboatparts.com\/products\/qbp521134","provider":"Quality Boat Parts","version":"1.0","type":"link"}