PM265LH (Low-High Frequency)Pocket/Keel Mount Depth & fast-response water-temperature sensor Low-CHIRPS from 42 kHz to 65 kHz 25 to 16 beamwidthHigh-CHIRPS from 130 kHz to 210 kHz 10 to 6 beamwidth103 kHz of total bandwidth from one transducerCovers popular fishing frequencies of 50 and 200 kHz plus everything else in the bandwidthFishing Profile: Commercial and recreational inshore and offshore fishing (deep-water canyon and sea-mount tracking)Bronze transducer housingHull Type: Fiberglass onlyCHIRP TECHNOLOGY5 to 10 times greater detail and resolution10 to 1,000 times more energy on targetsAccuracy down to 3,000M (10,000′)Precise separation between baitfish and game fishSuperior performance in noisy environmentsImproved bottom tracking at high boat speedsWARNING: 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: YesBox Dimensions: 5″H x 8″W x 12″L WT: 11.3 lbsBrochure (pdf)