PM275LHW Bronze Pocket Mount CHIRP Transducer - 12-PinBronze, Pocket Mount CHIRP Transducer with Temp, with 12-Pin Connector, Low-Freq: 42-65 kHz, High-Freg: 150-250kHz.The 275LH-W series transducers are truly broadband at its best. Paired with Furuno's DFF1-UHD, the pocket mounted PM275LH-W provides a high frequency range of 150-250Khz and a constant 25Adeg beamwidth. The "W" stands for wide and that's what the PM275LH-W really delivers. Unlike traditional high frequency (200kHz) transducers that provide narrow performance, this unique, new wide beam/high frequency design achieves over six times the coverage under the boat compared to standard high-frequency CHIRP Transducers.The PM275LH-W is also compatible with the FCV295 and FCV1150 variable frequency Fish Finders, providing the same frequency range with a 25Adeg wide beamwidth provided at every frequency.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.