R109LH Depth/Temperature Transducer

Part # R109LH

The R109LH is a urethane, thru-hull CHIRP transducer, ideal for sportfishing and commercial vessels up to 12 m (40 ft) in length. This dual-channel transducer combines Low CHIRP frequencies to accurately track the bottom in deep water, and High CHIRP for great resolution in shallower water.

Key Features

  • 38-75 kHz Low CHIRP with 19-10° port/starboard beam width (10-5° fore/aft)
  • 130-210 kHz High CHIRP with 8-4° beam width
  • Up to 1200 m (4000 ft) range with Low CHIRP
  • Narrow High CHIRP is great at pinpointing structure in shallower water
  • 16 internal broadband ceramics
  • Thru-hull with urethane housing, stuffing tube and high-performance fairing (can retrofit to existing R99 installations)
  • Suitable for fiberglass, wood and metal hulls
  • Ideal for sportfishing and commercial vessels up to 12 m (40 ft) in length
  • Recommended for use with the BSM-3 broadband sounder module
Where To Buy



    Dual Channel CHIRP

    Using pulsed transmissions swept across a range of frequencies, CHIRP technology delivers target resolution and depth penetration superior to traditional single-frequency sonar. This dual-channel CHIRP transducer operates in the 38-75 kHz Low CHIRP frequency range with a 19-10° port/starboard beam width (10-5° fore/aft), and the 130-210 kHz High CHIRP frequency range with a 8-4° beam width. With Low CHIRP, the R109LH provides an operating depth of up to 1200 m (4000 ft).

    Depth/Temperature

    One sensor does it all. Able to measure both depth and temperature in a single package, the R109LH simplifies installation and requires just one connection to your echosounder module or multifunction display.

    Mounting

    With urethane housing, the R109LH is suitable for thru-hull mounting in fiberglass, wood and metal hulls. Thru-hull mounting places the transducer in the water on the outside of your boat’s hull; a hole must be drilled for installation, and a fairing block is required to ensure proper alignment. This typically offers the best depth measurement and fishfinding performance.

    Calculate the beamwidth for this transducer

    R109LHFrequencyCone AngleBeamwidth
    130 kHz 8°  
    210 kHz 4°  
    38 kHz 19°  
    75 kHz 10°  
     
    Depth: Update
    NB: depending on the strength of your transducer pulse