AIRMAR ST69 Transom Mount

The ST69 is the ultimate, high-speed, transom-mounted sensor. The paddlewheel and housing do not project below the hull which minimizes spray and drag. And the design protects the sensor from damage by beaching, trailering, or objects in the water.

Features

• Speed and fast-response water-temperature sensing
• Built-in transom-angle adjustment for quick installation and simple maintenance
• Patented flow channel directs water to the paddlewheel for optimal performance
• Square-blade paddlewheel improves linearity and is accurate throughout the speed range
• Paddlewheel is easily removed for cleaning or replacement
• Housing design allows cable to exit via the left, right, or top to ease installation
• Chemical and impact-resistant, plastic housing

Options

• Speed only
• Pulse-division circuitry or other pulse rates
• Over-voltage protection (OVP)

Specifications

• Common Use: Cruising/Racing Sailboats, Leisure/Yachting, Fishing
• Functions: Speed, Temperature
• Housing: Plastic
• Mounting Style: Transom
• Power Rating: N/A
• Pulses: 20,000 p/nm* (5.6 Hz per knot)—*p/nm = pulses per nautical mile
• Retractable housing: No
• Speed Range: 4 to 50 knots (5 to 58 MPH)
• Tilted Element: No
• Voltage: 5 to 25 VDC
• Weight: 0.3 kg (0.6 lb.)
• Angle: 3° to 16°

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