Speed sensor ST300

water temperaturefor boatsthrough-hull

The ST300, speed and temperature sensor is low in price and short in size. As part of our Shorty™ Series, it is designed for boats with limited headroom. The P371, low-profile, housing option is nearly flush and minimizes drag with only 5 mm (3/16") extending outside of the hull. The P398 countersunk housing mounts flush, eliminating turbulence for more accurate speed readings. Features Speed only or speed and temperature 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 reduces water flow when paddlewheel insert is removed for cleaning or storage 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 P398 countersunk-housing installation requires special cutter Available in a plastic housing only Specifications Weight: 0.6 kg (1.3 lb.) Hull Material: Fiberglass or metal Hull Thickness: 6 mm (1/4") to 25 mm (1") Hole Diameter: 51 mm or 2" Speed Range: 0.1 to 40 knots (0.1 to 46 MPH) Supply Voltage: 5 to 25 VDC Supply Current: 100 mA at 12 VDC Standard Cable Length: 10 m (33') Includes: Blanking plug