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Airmar Ultrasonic Speed Sensor
  • Ultrasonic partsNO DRAG, Better performance
  • LOW MAINTENANCE, Highly reliable.
  • FLUSH MOUNTED, No protruding parts.
  • INSTANT REACTION, to changes on boat speed.
  • NO MOVING PARTS, CONSEQUENTLY no paddlewheel to foul or clean.
  • HIGHLY ACCURATE, No mechanical friction in the system to slow readings, higher accuracy is achieved by echo sounding beyond the turbulent boundary. Measures speed as low as 0.1 knot.
Ultrasonic Speed 3

How does it work?
  1. Two Transducers are incorporated in a single housing.
  2. Small particles present in the water pass through the beam.
  3. The speed sensor uses ultrasonic pulses to collect echoes from the particles in the water as they pass under two ceramics embedded in the sensor.
  4. As the boat travels through the water, both ceramics "view" the same stream of particles. Because it takes time for particles to travel between the two ceramics, the fore ceramic detects the particles before the aft.
  5. The ultrasonic measures the time lapse between the particles passing the first and second ceramic, thus calculating boat speed.

Ultrasonic Speed SensorRATE OF SPEED CALCULATION, within the Ultrasonic speed transducer ensures that the data output is very accurate and up to date. As a result, the dumping that is usually necessary for a paddlewheel sensor output is vastly reduced.

For more information and pricing, please contact us.

Site Map

Contact us, Write, Fax, E-Mail,

Call M-F [9.00am-5.00pm Central US (- 6h GMT)] at:
Hellas Marine, Inc.

Chicago Marine Electronics
212 E. Crescent Ave.
Elmhurst IL. 60126

Phone : +1 (630) 501-1938

email cme


Marine Electronics, Communication, Navigation, Autopilots & Instrument Marine products.

  1. Note: Posted MAP (Minimum Advertised Price) or CME prices are subject to and may change with out prior notification. Contact us for current pricing.

  2. Note: Posted prices do not include TAX for Illinois State residence, S&H, Installation, Set-up, Training, Calibration, Local Taxes or Custom fees and Freight carrier clearance fees of items sold.

  3. Note: Minimum Ground Shipping & Handling Policy: We do not have a minimum required order but small orders take just as much time to pick, pack and process as larger orders. A minimum of $15.00 shipping fee apply to your order. If the actual cost of shipping your products exceeds $15.00, we will revert to charging the actual cost of shipping. Back Orders or products marked "Pre-Order" and/or product not available at the time of shipment will be charged shipping as they are are shipped.

  4. Note: Products are not returnable, all sales are final, "Hellas Marine, Inc." and dba "Chicago Marine Electronics" does not provide any warranty as to any product sold, items sold may not be returned to "Hellas Marine, Inc." and dba "Chicago Marine Electronics", pursuant manufacture's warranty, defective products are repaired or replaced by the manufacturer, as per manufacturer's warranty.

  5. Note: "Hellas Marine, Inc." and dba "Chicago Marine Electronics" are not responsible for freight expenses on any warranty items S&H.

  6. Note: At "Hellas Marine, Inc." and dba "Chicago Marine Electronics" discretion, all items returned for credit are subject to a 25% restocking fee, sorry no refunds.

  7. Note: Our services are a person to person basis, to maintain our good prices and the latest software versions on product sold our stock is low, orders are processed by the date they received. Ordered products are Billed/Charged upon order.

  8. Note: Reproduction and copy of any page, picture, document or material  used in the www.HellasMarine.com & www.ChicagoMarineElectronics.com web site for commercial or any other use with out written authorization from Hellas Marine, Inc. & Chicago Marine Electronics is prohibited.

Fraud Alert: Fraudulent use of the ---@chicagomarineelectronics.com email addresses, spam emails are send via email communication messages to undisclosed recipients by unauthorized senders, if you are not expecting an email from Hellas Marine or Chicago Marine Electronics please disregard and delete the email, we apologize for any inconvenience and thank you for your understanding.

Created by Hellas Marine Inc.


Copyright 2001  {Hellas Marine, Inc. dba Chicago Marine Electronics}. All rights reserved.
Revised: February 17, 2017 .

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