• Description

Airmar R109LM Thru-Hull Transducer - Bare Wires

Rely on Airmar’s broadband transducers for your ultimate fishing mission. Whether you’re a commercial fisherman, charter captain, or tournament angler, there’s a new game in town! Chirp transducers enable bottom detection down to 3,000M (10,000’) with 5 to 10 times greater detail and resolution so precise it’s possible to distinguish between individual baitfish, game fish, and underwater structures. One transducer delivers up to 107 kHz of total bandwidth in just one installation, saving customers time and money.

As the HARD CORE model in the Chirp Thru-Hull product line, the R109LM Chirps across the following bandwidths:

LM Model - Low Frequency 38-75 kHz/Medium Frequency 80-130 kHz

Features:

  • Depth & fast-response water-temperature sensor
  • Low—CHIRPS from 38 kHz to 75 kHz 19° to 10° port-starboard beamwidth (10° to 5° fore-aft beamwidth)
  • Medium—CHIRPS from 80 kHz to 130 kHz 13° to 8° beamwidth
  • 87 kHz of total bandwidth from one transducer
  • Covers popular fishing frequencies of 38, 50, 88, and107 kHz plus everything else in the bandwidth
  • Fishing Profile: Commercial and recreational inshore and offshore fishing (deep-water canyon and sea-mount tracking)
  • Urethane transducer housing with High-Performance Fairing
  • Boat Size: 12 m (40’) and above
  • Hull Type: Fiberglass, wood, or metal
  • Exclusive Xducer ID® technology

Specifications:

  • Hull Deadrise: 0° to 25°
  • Acoustic Window: Epoxy/urethane
  • Weight: 15.1 kg (33.3 lb)

WarningWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Specifications:

  • Temperature: Yes
  • Speed Included: No
  • Pins: Bare Wires
  • Mounting Style: Thru-Hull
  • Imaging: Standard
  • Chirp: Low/Medium
  • Cable Length (Feet): 36'
  • Box Dimensions: 14"H x 17"W x 28"L WT: 47.7 lbs
  • UPC: 753759213039

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
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Kevin Leary
May 18, 2025
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Off grid Kit • Dec 21, 2025
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Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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