RealVision 3D(TM) Bronze Thru-Hull Transducer Pair Pack - 20Adeg - 8M Cable & Y-CableDesigned for inboard or outboard boats, the RV-220 Bronze Through Hull Transducer System lets you easily identify structures and locate fish with the life-like clarity of RealVision 3D(TM) sonar.The RV-220 system is a 4-channel, Wide Spectrum CHIRP transducer system with DownVision(TM), SideVision(TM), high frequency CHIRP fish targeting and RealVision 3D(TM) sonar inside. The transducer system has a built-in attitude and heading reference system (AHRS) that stabilizes the sonar imagery, automatically compensating for vessel motion. You&';ll enjoy crystal-clear imagery in waves, swells, and while maneuvering. The RV-220 system also has a built-in fast response water temperature sensor for quick, accurate readings.Raymarine&';s RV-220 Bronze Through Hull Transducer system pack contains a pair of RealVision 3D transducers with internal offset to accommodate hull deadrise angles from 13Adeg to 20Adeg. This completely eliminates the need for fairing blocks. The low-profile design slips effortlessly through the water without causing drag or cavitation. The near-flush RV-220 system works great on trailered boats too.The RV-220 system features rugged cast-bronze through hull bodies suitable for fiberglass or wooden hulls. One transducer transmits and receives to port and downwards, the other to starboard and downwards, ensuring a full 180Adeg of underwater coverage even on boats with deep keels or other underwater protrusions. Each transducer features a 2M pigtail, joining y-cable and 8-meter extension cable, resulting in an overall cable length of 10M (33&';.)What&';s in the Box? RV-220P Bronze Port Transducer with 2M cable RV-220S Bronze Starboard Transducer with 2M cable RealVision 3D Transducer Y-Cable RealVision 3D 8M (26&';) Transducer Extension Cable Anti-rotation bolt kit Installation instructions Specifications: Temperature: Yes Speed Included: No Pins: 25 Imagining: Standard/Down/Side Chirp: High Cable Length (Feet): 33&'; Mounting Style: Thru-Hull Box Dimensions: 14"H x 16"W x 28"L WT: 23.2 lbs UPC: 723193855379