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Active Underwater Acoustic Tracking - Manual and Top Side Acoustic Tracking Receivers and Transmitters. ACTIVE TRACKING RECEIVERS & RECEIVER KITS HYDROPHONES DH-4 Directional Hydrophone The DH-4 provides the greatest range and precision in locating transmitters from 30kHz to 100kHz. More… 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. More.. UDR Underwater Diver Receiver The Underwater 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. More… USR-23 Ultrasonic Receiver The USR-23 is an active tracking receiver with new features to locate ultrasonic transmitters manufactured by SONOTRONICS, Vemco or Lotek Wireless. More… 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. More… UDR-Kit The UDR-kit contains all of the basic tools necessary for locating transmitters from a surface vessel and while diving. This includes the UDR receiver, external hydrophone adapter, directional hydrophone and useful accessories, housed in a rugged Pelican case. More...

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* UDR 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 is featuring the AVAR, Autonomous Vehicle Acoustic Receiver, adding acoustic transmitter detection and logging to unmanned marine vehicles. The AVAR may be operated as an independent unit for short term deployments using its on-board battery, or may be connected for long term power and real-time communications with an external controller. AVAR: AUTONOMOUS VEHICLE ACOUSTIC RECEIVER Sonotronics is featuring the AVAR, Autonomous Vehicle Acoustic Receiver, adding acoustic transmitter detection and logging to unmanned marine vehicles. The AVAR may be operated as an independent unit for short term deployments using its on-board battery, or may be connected for long term power and real-time communications with an external controller. Key specs: 30kHz – 100kHz 235mm x 64mm, 855grams RS232 Data Interface 300m rated 0 – 12VDC with rechargeable NiMH battery Links: PRICES

The Sonotronics EMT-AR “Accelerometer Transmitter” is designed to provide information pertaining to movement of any animal or target tagged with the transmitter. The EMT-AR contains an onboard 2 dimensional accelerometer. When movement (acceleration) is detected on either axis, the quantity and direction of the acceleration is processed and one of many different possible output algorithms are utilized. EMT-AR ACCELEROMETER BASED ACOUSTIC TRANSMITTER Sonotronics EMT-AR (Angle Reporting) transmitters use an integrated accelerometer to measure and transmit the tilt angle or inclination of attached equipment, enabling real-time monitoring of its orientation. A surface receiver can be used to verify the alignment of instruments such as ADCPs without requiring a diver. With operating lifetimes of up to four years, these transmitters can also mark deployment sites for future relocation. Monitoring is performed using either the USR-23 deck receiver or the UDR diver receiver. Links: EMT-AR Datasheet EMT-AR Manual VIDEOS PRICES

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 PRICES

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 PRICES

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 PRICES

The PT-Kit (Passive Tracking) contains all the tools necessary to start a passive tracking project: a receiver and 10 long life transmitters housed in a convenient carrying case. *NEW* PT-KIT (PASSIVE TRACKING) The PT-Kit (Passive Tracking) contains all the tools necessary to start a passive tracking project: a receiver and 10 long life transmitters housed in a convenient carrying case. The PT-kit includes: A miniSURT-Li receiver 10 CT-82-2 long life transmitters QR-code card for manual and PC based software Magnets for activating receiver and transmitters A hard case with protective foam Description of the tools: miniSURT Receiver The Li version of the miniSURT allows the use of common 18650 Li-ion batteries Scan multiple frequencies or focus on a single frequency as your project requires Scan multiple gain settings for detection range assessment Temperature logging and optional transponding Multiple detection protocols supported Compatible with SURsoftDPC for collaborating with multiple receiver arrays, or direct download to CSV Bluetooth Low Energy communication for configuration and data downloads CT-82-2 Transmitters Long life transmitter (>3yr with 20-40 sec burst) Open Protocol and multi-frequency ACT codes available Embedded LED confirms function without receiver Magnet sensor to switch transmitter on and off (magnets included) Long range detections Compatible with all Sonotronics receivers Links: Datasheets miniSURT Software Receiver Software VIDEOS PRICES

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 PRICES