Raymarine ST900/P120 Speed and Temperature Thru-Hull Transducer with 45 ft Cable

ST900/P120 Speed Temp Thru-Hull Transducer Retractable with 13.7M (45) Cable

Speed performance has been taken to the next level with the ST900 Speed/Temperature sensor. Featuring the new Gen2 Paddlewheel, the ST900 outperforms all other paddlewheel sensors for responsive startup and linearity. The Gen2 Paddlewheel begins delivering accurate speed reporting as low as 0.3 knots and maintains smooth speed output through 45 knots.

Available with a plastic or bronze transducer housing, they sit nearly flush with the boats hull and minimize drag with only 5mm (3/16) extending outside the hull. The housing has a valve assembly that helps to minimize water ingress in the bilge when the sensor is removed for routine maintenance of the paddlewheel.

Features:

• Speed and fast-response water temperature sensor
• Analog output for use with Raymarine instruments like i40, i50, iTC-5, and legacy systems
• Retractable for easy maintenance
• ST900 transducer core is retrofittable into existing Airmar P120 and B120 transducer housings

Specifications:

• Plastic
• Hull Material: Fiberglass/Metal
• Cable Length: 13.7M (45)
• Records: Speed/Temperature
• Hole Size: 51 mm (2)
• Mounting Style: Low Profile Thru-Hull
• Speed Range: 0.3 to 45 knots (.34 to 52 MPH/.55 to 83 KPH)
• Temperature Range: -10 to 40C (14 to 104F)

The Raymarine ST900/P120 Speed and Temperature Thru-Hull Transducer is designed to deliver precise and responsive water speed and temperature readings for your vessel. Featuring the advanced Gen2 Paddlewheel, this transducer provides accurate speed reporting from as low as 0.3 knots up to 45 knots, ensuring reliable performance across a wide range of boating conditions. Its low-profile design minimizes drag by sitting nearly flush with the hull, with only 3/16 inch extending outside the surface, making it suitable for both fiberglass and metal hulls.

Constructed with durable plastic or bronze housing options, the transducer includes a valve assembly that reduces water ingress during maintenance, enhancing longevity and ease of service. The retractable design allows for simple removal and maintenance, ensuring minimal downtime. Compatible with various Raymarine instruments such as i40, i50, and iTC-5, the transducer offers an analog output for seamless integration into your existing navigation system. Its robust construction and high-performance paddlewheel make it a reliable choice for serious sailors and boaters alike.

The transducer's specifications include a 51 mm (2 inch) hole size for installation, and it supports a temperature range from -10°C to 40°C (14°F to 104°F). The flexible cable length of 45 feet allows for versatile mounting options, accommodating different vessel configurations. Whether updating an existing system or installing a new one, the Raymarine ST900/P120 ensures precise speed and temperature data, helping you navigate more confidently on the water.

Features:

• Speed and fast-response water temperature sensor

• Analog output compatible with Raymarine instruments like i40, i50, and iTC-5

• Retractable design for easy maintenance

• Gen2 Paddlewheel for improved responsiveness and linearity

• Retrofit compatible with existing Airmar P120 and B120 transducer housings

• Low profile, nearly flush mount with minimal drag

• Durable plastic or bronze housing options

• Includes valve assembly to minimize water ingress during maintenance