ST300 Shorty ST Sensor Thru
The ST300 is a compact, cost-effective speed and temperature sensor designed for boats with limited headroom. Part of Airmar’s Shorty™ Series, it features a total housing height of just 75 mm (2.96"), making it ideal for installations where space is tight. The included P371 low-profile housing extends only 5 mm (3/16") outside the hull, significantly reducing drag and maintaining smooth water flow. For even greater performance, the optional P398 countersunk housing mounts flush to the hull, virtually eliminating turbulence for enhanced speed accuracy. Perfect for smaller vessels or performance-minded installations, the ST300 combines streamlined design with essential data, all in a space-saving package.
FEATURES
- Speed and fast-response water-temperature sensing
- Can be installed in tight spaces with only 153 mm (6") of headroom
- Total height of housing is only 75 mm (2.96")
- Right-angle cable exit saves space and protects transducer if stepped on
- Self-closing water valve minimizes water entering the boat when the retractable insert is being replaced with the blanking plug
- Fins on sides of paddlewheel cavity provide improved accuracy in cross-flow conditions
- Plastic thru-hull housing is ABYC H-27 compliant
- Included rubber washer allows tightening of the hull nut to irregular hull surfaces
- Available in a plastic housing only
- Options: Speed sensor only, P398 countersunk housing which requires a special cutter to install
SPECIFICATIONS
- Functions: Speed, Temperature
- Mounting Style: Low Profile Thru-Hull
- Power Rating: N/A
- Housing: Urethane
- Hull Material: Fiberglass or metal
- Hole Size: 51 mm (2")
- Retractable housing: Yes
- Cable-Length: 10 m (33')
- Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
- Pulses: 17,000 p/nm* (4.8 Hz per knot)—*p/nm = pulses per nautical mile
- Speed Range: 0.1 to 40 knots (0.1 to 46 MPH)
- Tilted Element: No
- Voltage: 5 to 25 VDC
- Weight: 0.6 kg (1.3 lb.)
BROCHURES
