Airmar R109LHW Chirp Thru-Hull Transducer - No Connector [R109C-LHW]R109LHW Low High Wide Chirp Thru Hull Transducer with Fairing Block No Connector Get more coverage under the boat with Airmars unique wide beam, low and high frequency, Chirp ready R109LHW. The high band operates across a frequency range of 150 to 250 kHz and has a fixed 25 degree beam for all frequencies, which results in superior resolution. The constantly wide beam provides twice the coverage and clear fish arches on the display compared to most