Raymarine DST-800 Transducer, thru-hull, analog, depth, speed, temp

The DT800 is a low-profile, retractable, thru-hull sensor that computes accurate depth and temperature data and sends it to a compatible Raymarine instrument display or an ITC-5. The DT800 operates at a frequency of 235 kHz and can run simultaneously with other Airmar 50/200 kHz transducers on-board with no interference. The broadband ceramic delivers depth readings to 183 m (600'), as well as accurate shallow-water readings in as little as 500 mm (1.6').