Speed Transducer (Speed And Temperature Retractable With Flap Valve)
Speed Transducer (Speed And Temperature Retractable With Flap Valve)

Speed Transducer (Speed And Temperature Retractable With Flap Valve)

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Raymarine's T911 is a thru-hull retractable, speed and temperature transducer that is fitted with a flap valve to reduce water ingress when removed for cleaning.


  • Transducer sends speed and depth data by cable to Raymarine T121 Hull Transmitter (not included) which then forwards the data to displays by wireless link
  • Analog output
  • Nearly flush low-profile model minimizes drag with only 3/16" protruding outside of hull
  • Fins straighten water flow onto paddlewheel increasing flow stability and accuracy
  • Designed with self-closing valve – stops most waterflow upon removal of insert
  • Transducer supplied with blanking plug
  • Housing is ABYC H-27 compliant
  • Compatible with Raymarine wireless cruising display systems including T100 and T104


  • Raymarine Mo del No. T911
  • Mount: Thru-hull
  • Hull Deadrise: 0° - 7°
  • Housing Material: Plastic
  • Cable Length: 20 ft.
  • Supply Voltage: 5 - 25 Volt DC
  • Pulse Rate: 4.8 Hz per knot
  • Speed Range: 2 - 45 knots
  • Compatible Hull Materials: Fiberglass or metal
  • Hole Diameter for Installation: 2"
  • Dimensions: 4.68" H x 2.94" OD

After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.

Most orders are shipped within 2 - 5 Days

Shipping rates

Orders delivered to Australian Post Codes attract an $18.00 Flat Rate Shipping Charge* This excludes Bulky or Dangerous Goods

For Bulky Goods, Dangerous Goods and Remote areas.

If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

Should you have any queries or concerns about shipping, please don't hesitate to get in touch by clicking the support button on bottom right of the page.

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