Airmar Transducers

Airmar ST850 NMEA 2000 Plastic TH Speed/Temp

Brand: Airmar
Part Number: ST850PV-N2
The ST850 is our standard, thru-hull speed sensor. Digital signal processing inside the housing provides speed and temperature data to a chart plotter, radar screen, or digital display in either analog or NMEA 2000® formats. The plastic P17, bronze B17, and stainless steel SS577 housing options are available to meet most hull requirements. These low-profile units are nearly flush and minimize drag with only 5 mm (3/16") extending outside of the hull.

Weight:—0.7 kg (1.4 lb)—Plastic—1.3 kg (2.8 lb)—Bronze—1.6 kg (3.5 lb)—Stainless Steel
Speed Range: 2 knots to 45 knots (2 MPH to 52 MPH)
Acoustic Window: Urethane
Hull Deadrise: Up to 22°
Data Update Rate: 1 per second
Pressure Rating: 3 m (10’)
Pulse Rate: 20,000 p/nm* (5.6 Hz per knot)—*p/nm = pulses per nautical mile
Supply Voltage: 9 VDC to 16 VDC
Supply Current: <100 mA
Standard Cable Length: 6 m (20’) NMEA 2000 cable
Temperature Sensor Accuracy: ±0.5°C (±1.8°F)
Temperature Sensor Range: -10°C to 40°C (14°F to 104°F)
NMEA 2000® Load Equivalency Number (LEN): 2
CE Regulation: Complies to IERC945

NMEA 2000® Supported PGNs
59392 ......... ISO Acknowledgement
600928 ....... ISO Address Claim
126208 ....... Acknowledge Group Function
126464 ....... Transmit PGN List Group Function
126464 ....... Received PGN List Group Function
126996 ....... Product Information
128259 ....... Speed (Speed Water Reference)
128275 ....... Distance Log
130310 ....... Environmental Parameters (Water Temperature)
130311 ....... Environmental Parameters (Water Temperature)
130312 ....... Environmental Parameters (Water Temperature)