Garmin 010-10182-21 50/200KHZ 600 Watt B117 8-Pin

This bronze (B117) thru-hull mount transducer is a great choice. It accurately provides depth and temperature information. With an operating frequency of 50 or 200 kHz, it can be mounted on a 0 - 7° deadrise angle.

Using this Garmin B117 transducer is easy. First, mount it on a surface with a 0 - 7° deadrise angle as it's designed for. Once installed, it'll start showing you depth and temperature data. Remember to keep the transducer clean to ensure accurate readings. Avoid hitting it against hard objects as it may damage the device. Periodically check the connections to make sure they're secure. If you notice any issues, consult the Garmin support team.