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Founded in 1971, Sonotronics is THE Pioneer in Acoustic Telemetry for Animal tracking. Providing Ultrasonic Transmitters, Receivers and Hydrophones for Tracking Animals and Equipment underwater. Active Tracking Sonotronics, Inc is dedicated to providing state-of-the-art ultrasonic transmitters, receivers, and hydrophones for tracking animals and equipment underwater. Our products are designed to meet the highest standards of performance and reliability, ensuring accurate and efficient animal tracking. Passive Tracking Explore some of our featured projects where our acoustic telemetry solutions have played a pivotal role in advancing research and conservation efforts. From tracking marine mammals to monitoring underwater equipment, our technology has been instrumental in various scientific studies and environmental projects. Equipment Tracking Acoustic equipment tracking is a crucial aspect of marine research and exploration. With our advanced technology and expertise, we provide reliable and accurate tracking solutions for your equipment. Trust us to help you achieve your underwater research goals. *NEW* USR25 ANNOUNCEMENTS What's New! *NEW* DH-ROV Scholarship The Don L Brumbaugh Memorial Equipment Scholarship Join our mailing list Email* Subscribe I want to subscribe to your mailing list. ABOUT SONOTRONICS, INC Founded in 1971, Sonotronics is THE Pioneer in Acoustic Telemetry for Animal tracking. Providing Ultrasonic Transmitters, Receivers and Hydrophones for Tracking Animals and Equipment underwater. Sonotronics products are used around the world in every ocean, and in rivers, lakes, and reservoirs. Sonotronics is a lead manufacturer of acoustic transmitters and acoustic receivers. We strive to provide excellent service to our customers while working together to make a difference in the world we share. How Sonotronics and our Customers are Making a Difference in the World we Share…* Learn More

Sonotronics, Inc. offers an Under Water Diver Receiver that allows a diver to approach an object or animal marked with an acoustic transmitter. UDR UNDERWATER DIVER RECEIVER Relocation of a Marked Site Low Visibility Equipment Relocation Sonotronics, Inc. offers an Under Water Diver Receiver that allows a diver to approach an object or animal marked with an ultrasonic pinger*. The UDR can achieve ranges exceeding 1km, while still allowing relocation in zero visibility. The UDR comes with waterproof headphones and has variable gain control to maintain good signal strength and directionality during approach of the target, as well as volume control and a backlit display. The UDR is user programmable for frequency and gain ranges. *The UDR has been used in field research for locating pingers manufactured by SONOTRONICS as well as others. Specifications Length : (From Display to outer rim) 16cm Width : (At outer rim) 11cm Height : (Bottom of Handle to top of unit) 20cm Weight (Air) : UDR: 900g, Headphones: 415g Sensitivity : 20uV, (S+N)/N = 30dB Frequencies : 30 to 90 kHz Controls : Gain control, volume control, frequency control. User can preprogram the unit before the dive for a variety of applications. Autonomy : 8 hour battery life on fresh recharge Accessories Bonephone Optional Bonephone headphone piece can be used in applications where a wetsuit hood is worn, with the earpiece inserted into the hood next to the ear. This can be useful in cold water and high noise environments. When ordering, the Bonephone can be requested as a replacement to the standard headphones, or can be ordered as an additional accessory. Links: UDR Datasheet UDR Manual VIDEOS

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The MANTRAK kit was designed to bring together the most common tools our customers have found to be valuable for manual tracking. The kit has become the most frequent package used by first time researchers. MANTRAK – MANUAL TRACKING KIT The MANTRAK kit was designed to bring together the most common tools our customers have found to be valuable for manual tracking. The kit has become the most frequent package used by first time researchers. The MANTRAK kit contains: USR-23 Receiver DH-4 Directional Hydrophone Waterproof Pelican Case External Speaker and Cable Professional-grade Headphones Extra Battery Pack Test Transmitter Auxiliary Power Cable Links: MANTRAK Datasheet Receiver Software VIDEOS

The DH-4 provides the greatest range and precision in locating transmitters from 30kHz to 100kHz. The parabolic reflector provide 16db of gain over a comparable omnidirectional hydrophone, and yields a calculated DI of nearly 25db, reducing the effect of environmental noise. The DH-4 is the primary hydrophone for manual/active tracking. MODEL DH-4 DIRECTIONAL HYDROPHONE The DH-4 provides the greatest range and precision in locating transmitters from 30kHz to 100kHz. The parabolic reflector provide 16db of gain over a comparable omnidirectional hydrophone, and yields a calculated DI of nearly 25db, reducing the effect of environmental noise. The DH-4 is the primary hydrophone for manual/active tracking. Sensitivity: -84 dBV ref 1 uBar (-184dBV ref 1 uPascal). Beam Width: +/-6 degrees at half power points. Shaft Length: User supplies mounting shaft. (1 inch PVC) Output: BNC connector. Cable: Replaceable 10’ RG-58 C/U. Links: DH-4 Manual VIDEOS

The TH-2 provides a simple method for mobile active tracking: its small size and hydrodynamic shape allows for trolling at speeds up to 5 knots, while the long cable length minimizes the affect of engine and prop noise. Eyelets allow attachment of small weights or diving lures to ensure the hydrophone is kept at depth while trolling. This design, though simple, rivals more elaborate and expensive systems in actual field trials. MODEL TH-2 TOWED OMNIDIRECTIONAL HYDROPHONE The TH-2 provides a simple method for mobile active tracking: its small size and hydrodynamic shape allows for trolling at speeds up to 5 knots, while the long cable length minimizes the affect of engine and prop noise. Eyelets allow attachment of small weights or diving lures to ensure the hydrophone is kept at depth while trolling. This design, though simple, rivals more elaborate and expensive systems in actual field trials. Sensitivity: -100 dBV ref 1 uBar (-200 dBV ref 1 uPascal) Beam Width: Omni-directional +/- 2 dB. Output: BNC connector. Cable: 50’ RG316/U. Links: TH-2 Manual VIDEOS

Sonotronics proudly introduces the picoTag family. They represents the smallest acoustic transmitters in the Sonotronics product line, beginning at .6g in weight in water. These tiny transmitters will allow researchers to gain valuable information on small species never possible before. PT SERIES SUBMINIATURE TRANSMITTERS Range 300m – 750m+ Sonotronics proudly introduces the picoTag family. They represents the smallest acoustic transmitters in the Sonotronics product line, beginning at .6g in weight in water. These tiny transmitters will allow researchers to gain valuable information on small species never possible before. The PicoTags come standard in bullet shaped packaged shown in the photo. This packaging is more commonly used for internal implant or in cases where gluing the transmitter is appropriate. Slightly elongated packages are available that can contain small drill holes for external mount. Packaging changes result in changes in the weight and dimension specifications. Note that quoted ranges are when manual tracking. Notes The typical rule of thumb is to use transmitters that have a weight in water that is 1.5 – 2% of the fish weight in air. Weight in O2 (air) is put only as additional reference. -E is the extension denoting external mount, -I denotes internal implant. You must specify internal or external when ordering transmitters. Links: VIDEOS

Sonotronics’ depth telemetry transmitters transmit their depth by varying the pulse interval time between pings. For example, a tag at 0psi at the surface may have an interval time of 650ms, and a full scale pressure of 100psi with a corresponding interval time of 2050ms. Depth transmitters come in 50, 100, 200, 300, and 500psi models. The accuracy of these transmitters is +/- 2% of full scale. DT AND IBDT TRANSMITTERS – DEPTH TELEMETRY Sonotronics’ depth telemetry transmitters transmit their depth by varying the pulse interval time between pings. For example, a tag at 0psi at the surface may have an interval time of 650ms, and a full scale pressure of 100psi with a corresponding interval time of 2050ms. Depth transmitters come in 50, 100, 200, 300, and 500psi models. The accuracy of these transmitters is +/- 2% of full scale. Depth Telemetry Transmitters IBDT: Range up to 1km+ DT-97: Range up to 3km+ Links: VIDEOS

Coded High Power transmitters generate a unique aural sequence, as well as unique combinations of frequency and ping interval allowing detection by both passive and active receivers. The CHP series of transmitters provide maximum detection ranges for use with pelagic studies or in areas of high noise. CHP TRANSMITTERS Coded High Power transmitters generate a unique aural sequence, as well as unique combinations of frequency and ping interval allowing detection by both passive and active receivers. The CHP series of transmitters provide maximum detection ranges for use with pelagic studies or in areas of high noise. Coded High Powered Transmitters Notes Range is typical under good conditions, using a Sonotronics active receiver and directional hydrophone. Autonomy based on a ping rate of once per second. Extened lifetimes are available by cycling the transmitters, please contact Sonotronics for more details CHP transmitters are by default produced with flat ends and small holes for an external mount, but may be ordered with rounded ends for internal implant. Links: CHP Datasheet VIDEOS

Sonotronics temperature telemetry transmitters transmit their current temperature by varying the pulse interval time between pings CTT TRANSMITTERS – CODED TEMPERATURE TELEMETRY Sonotronics temperature telemetry transmitters transmit their current temperature by varying the pulse interval time between pings. For example, a tag at 0 deg Celsius may have an interval time of 700ms, and at 25 deg celsius it may have a pulse interval time of 1450ms. Temperature tag instruction sheets are sent with temperature tags. The temperature transmitters have an accuracy of +/-2 deg C and a resolution of.5 deg C. The transmitters can be user calibrated for accuracies greater than +/- 2 deg C. Temperature Telemetry Transmitters CTT: Range up to 1km+ Notes The typical rule of thumb is to use transmitters that have a weight in water that is 1.5 – 2% of the fish weight in air. Weight in O2 (air) is put only as additional reference. -E is the extension denoting external mount, -I denotes internal implant. You must specify internal or external when ordering transmitters. Links: CTT Manual VIDEOS