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Because the SDD-110 is a one-piece system, it doesn't require a black-box sounder or the complicated wiring associated with network sounders. Instead, the 120kHz transducer plugs directly into the back of the unit for fast and easy installation. The SDD-110 uses an inexpensive, flush-mount 2" thru-hull transducer with a 38° beam angle. This allows for easy installation and proper beam orientation on most hulls without the need for a fairing block. In addition to providing precise water depth data, the SDD-110 also features a visible trend indicator to indicate if depth is increasing or decreasing. Audible alarms also alert the operator to dangerous shallowing conditions or if the water drops below a selected depth.
The SDD-110 also features NMEA-0183 depth data output that can be interfaced with other onboard equipment. Similar to Si-Tex's popular SST-110 temp gauge, the SDD-110 is a drop-in replacement for the Datamarine Offshore Digital Sounder, popular for many years on numerous sportfishing vessels and workboats.