Raymarine ST900/P120 Low Profile Retractable Through Hull Speed Transducer - 13.7m (45’) Cable

The Raymarine ST900 Speed/Temperature transducer features the Gen2 Paddlewheel for best-in-class responsiveness — accurate speed reporting from as low as 0.3 knots up to 45 knots, with smooth output throughout the range.

• Measures speed and fast-response water temperature
• Analog output — compatible with Raymarine i40, i50, iTC-5, and legacy instruments
• Low-profile thru-hull mount with only 5mm extending below the hull — minimal drag
• Retractable design with valve assembly for easy maintenance without significant water ingress
• ST900 core retrofits into existing Airmar P120 and B120 housings

Specifications

• Housing: Plastic
• Hull compatibility: Fibreglass / Metal
• Hole size: 51mm
• Speed range: 0.3 – 45 knots
• Temperature range: 10° – 40°C
• Cable length: 13.7m (45')