Airmar ST850 Thru-Hull Speed & Temperature Sensor with Housing

• Speed and temperature
• Speed Range: 2 to 45 knots (2 to 52 MPH)
• NMEA 2000 or analog output options
• Retractable insert in a low-profile housing with a water valve
• Available in a plastic (P17) or bronze (B17) housing with water valve
• Retrofits into B617V, P617V, SS617V, P217, P314or ST650 housing
• NMEA 2000 certified or analog cable

The ST850 is a low-profile, retractable, thru-hull sensor that computes accurate speed and temperature data and sends it to any NMEA 0183 or NMEA 2000 display or network. These low-profile units are nearly flush and minimize drag with only 5 mm (3/16") extending outside of the hull. The housing features a water valve which minimizes water ingress into the boat when the retractable insert is being replaced with the blanking plug.

Airmar's Smart Sensors have embedded microelectronics. The signals from the speed and temperature sensors are processed right inside the housing itself. All that is needed to receive speed and temperature data is a single cable into a compatible network or display. Available as an analog sensor or a digital Smart Sensor that can output in NMEA 0183 or NMEA 2000 standard.