CPT - 110 CHIRP Through - Hole Plastic Transducer - for xx8 and AXIOM DV displays - Raymarine The dual - channel CHIRP thru - hull transducer has a tapered angle to detect and display details below the waterline. This very large fan - shaped cone provides ultra - realistic Down Vision sonar images. The transducer also communicates depth and temperature data. Technical characteristics Through installation Materials polyurethane / plastic Maximum DownVision depth: approx. 180 m (600 ft) / Fishfinder: approx. 270 m (900 ft) DownVision / CHIRP Fishfinder Frequencies Beam width (W/H) 25/60 Depth and temperature data Fiberglass / metal hull materials Cable length 10m / 33ft Lowest installation angle 25° maximum Compatible with the following plotters:. - Raymarine a68 - Raymarine a78 - Raymarine a98 - Raymarine a128 - Raymarine eS78 - Raymarine eS98 - Raymarine eS128 - Raymarine AXIOM DV The transducer is not compatible with the Raymarine AXIOM Pro S series.