Airmar’s patented UDST800 just turned your maintenance time into more cruising time—and made your boat smarter too. Get ultrasonic speed, depth, and temperature in a single thru-hull stainless steel housing with no moving parts. Say goodbye to paddlewheel maintenance and hello to Smart™ technology, from the company who invented the Smart™ Sensor.
Ultrasonic speed, depth, and fast-response water-temperature sensing
Single housing with no moving parts—no paddlewheel
Precise readings at high speeds ideal for powerboats, cruising, and sailing
Advanced filtering and sampling rates for increased accuracy at all speeds
Adapts automatically to boat speed, water depth, and water clarity, keeping speed accuracy consistent
235 kHz frequency prevents interference with other echosounders on the vessel
Retractable plastic insert in a low-profile stainless steel housing with water valve
Also available in a bronze (B617V) or plastic housing
Retrofits into Airmar’s P617V, B617V or SS617V housing
Airmar's Smart™ Sensor technology
Functions: Depth, Speed, Temperature
Mounting Style: Low Profile Thru-Hull
Power Rating: N/A
Protocol Output: NMEA 2000®
Housing: Stainless Steel
Hull Material: All hull materials
Hole Size: 51 mm (2"), Stainless steel housing in metal hull—57 mm (2-1/4")
Retractable housing: Yes
Acoustic Window: Urethane
Cable-Length: 6 m (20') NMEA 2000® cable
Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
Data Rate: Up to 10 times per second