Broadband Reference Hydrophones and Accessories

Teledyne RESON Solutions

Hydrophone product line

Teledyne RESON has over 40 years proven reliability in underwater acoustics. Over the years we have worked with internationally recognized laboratories and industries on the development of acoustic standard references and advanced sensor designs. The result of this work is an expansive, comprehensive line of precision reference hydrophones and projectors covering frequencies from 0.1Hz to the MHz band.
Every hydrophone leaving production is individually calibrated. Teledyne RESON provides calibrations consistent with international standards established at the National Physical Laboratory, UK.
Teledyne RESON reference hydrophones are designed for precision underwater acoustic measurements, signal detection, and/or calibrated reference acoustic projection. Our hydrophones are internationally trusted for quality acoustic measuring in scientific research, navy, and environmental monitoring.
Teledyne RESON is also an OEM supplier of hydrophones for many industrial and commercial products.

Flexibility, Responsiveness & Service

Our Sales, Service, and R&D department is dedicated to providing solutions for customer needs. In addition to maintaining a product line of standard hydrophones, our experienced team of engineers also design and manufacture customer-specific sensors.
We are also flexible to discuss modification of our Commercial of the Shelf (COTS) products to better fit specific system integration requirements. Teledyne RESON is dedicated to your solutions.


The Danish headquarters, Teledyne RESON, is quality certified in accordance with ISO 9001:2008, which ensures that all Teledyne RESON products are manufactured according to the strictest quality requirements for reliable long term, continuous operation. The complete manufacturing process is monitored, from development through production and shipping. Our Production and Calibration facility includes two large tanks where we can perform calibration measurements of our products, and a high-pressure test tank with pressure range up to 700 bar.


Without Internal Preamplifiers
With Internal Preamplifiers

Cable for Hydrophones

Cable description for Hydrophones with integrated cables
The below models use TL8140, TL8142 or TL8144 cable options


Optional Battery Packs for Teledyne RESON Preamplifiers

Diagram on Accessories

Hydrophones without integrated preamplifiers

Hydrophones with integrated preamplifiers

Example set up

Calibrations are done with respect to a reference hydrophone. The reference hydrophone is calibrate by the reciprocity method and this is undertaken by the National Physical Laboratory (NPL) in the United Kingdom. For more details on calibrations and related uncertainties please see
Teledyne RESON calibrations use pulse-gated measurement techniques are used to avoid reflections in the tank. Voltage, current, and impedance are all measured within the same gated pulse. The pulse width is limited by its wavelength and the size of the tank. We also perform a pistonphone calibration test at 250Hz. Every Hydrophone and Transducer that leaves our facility is quality checked and individually calibrated. Each unit has its own serial number and ships with its own receive, impedance and transmit (when applicable) calibration plots.


Teledyne Marine

A Sea of Solutions – One Supplier
Teledyne RESON forms together with Teledyne BlueView and Teledyne Odom Hydrographic the Teledyne Marine Acoustic Imaging Group (TMAIG). TMAIG develops some of the world’s most sophisticated sonar technology.
TMAIG has manufacturing, R&D, sales and after service functions at the headquarters in Denmark as well as in Holland, Germany, UK and the USA. Furthermore it has sales offices in USA and in Shanghai and supports local sales through a network of distribution partners in more than 47 countries.
TMAIG is part of Teledyne Marine, a substantial group of companies providing products and services to the oceanographic community. Teledyne Marine is owned by Teledyne Technologies Inc. , a company listed on the New York Stock Exchange (TDY ).
In keeping with Teledyne’s philosophy, the member companies within the Teledyne Marine Group remain committed to their technical heritage; however, our Teledyne Marine sales staff is able to address not only brand level solution, but turn-key systems and capabilities by leveraging our full range of technology solutions. Our goal is to provide a one-stop shopping experience including 24/7 customer support world-wide