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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* 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

Acoustic Transmitters and Receivers -Sonotronics offers an array of tracking products built on the concept of an Integrated Tracking Approach – a method that permits interoperability between product types, as well as forward and backward compatibility. TRACKING PRODUCTS Sonotronics offers an array of tracking products built on the concept of an Integrated Tracking Approach – a method that permits interoperability between product types, as well as forward and backward compatibility. As an example, recently a transmitter used to tag a fish 14 years earlier was detected by a modern MANTRAK receiver, and recovered on a lake bottom by use of an Underwater Diver Receiver (UDR) used primarily for the recovery of tagged equipment. This flexibility and consistency protects your investment in equipment, and allows for collaboration between groups with different interests: many universities use Sonotronics passive tracking products for long term fisheries studies, while at the same institution, an engineering group uses equipment tracking transmitters to tag submerged electronics packages for later retrieval, and both groups use the same active tracking receivers to obtain real-time information on either fish or equipment location and associated telemetry. Although this equipment is highly compatible, there are some detailed differences that help in particular applications: for example Equipment Marking Transmitters (EMTs) the same internal electronics as passive tracking tags used in fisheries research, the EMTs are housed in rugged, brightly colored PVC, with large mounting holes allowing use of standard zip ties for easy attachment to equipment. Based on the application area, Sonotronics tacking products are divided into 3 areas: Active Tracking, Passive Tracking, and Equipment Tracking.

Transmitters Sonotronics manufactures ultrasonic transmitters that attach to equipment or animals for detection and tracking with compatible receivers. Transmitters are defined by three main variables: size, autonomy or operating life, and detection range. They emit coded signals that uniquely identify the attached object; the coding protocol is selected based on the receiver system and tracking method. Each transmitter operates at a production-set frequency chosen for environmental conditions and receiver compatibility. The following sections provide additional detail based on the object being tracked. Fisheries Transmitters Click to view all Fisheries Transmiters Sonotronics manufactures transmitters for tagging and tracking a wide range of aquatic species, typically for studies with defined objectives. The most important factor in selecting a fisheries transmitter is the smallest animal to be tagged. According to Fisheries Techniques, a transmitter’s weight in water should not exceed 1.25% of the animal’s weight out of water. Because Sonotronics lists transmitter weight in water, multiplying that value by 80 gives the minimum recommended animal weight. Tracking duration is the next key consideration because it affects both attachment method and transmitter protocol. For example, a one-month active tracking study from a boat may use a simple externally mounted transmitter with an ACT “continuous” protocol. By contrast, a study using only submerged passive receivers should use surgically implanted transmitters with a PPM coded protocol, which can extend transmitter life to nearly ten times that of a continuous protocol. Once size and operating life are defined, the expected detection range can be evaluated. These factors can be adjusted iteratively to identify the best transmitter; for instance, if the body of water limits detection range, selecting a transmitter for a larger minimum animal size may provide longer autonomy. Equipment Marking Transmitters Click to view all Equipment Marking Transmitters “Recover Your Assets” Sonotronics is the leader in transmitter development for a variety of oceanographic needs. Our transmitters have been used to relocate current meters, ROV/AUV/UUV vehicles, deep ocean sites, divers, and many other subsea applications. This page provides an overview of our equipment marker pinger product line. Links to specific pages about products are found here. Equipment Marking Transmitters (EMTs) are similar to fisheries transmitters but use rugged housings with mounting features for quick, secure attachment to underwater instruments, vehicles, or structures. They are generally used to help recover valuable equipment when underwater conditions prevent normal retrieval. EMTs are typically selected by first determining the required service life, then choosing the desired detection range for the deployment environment. For example, an ADCP planned for a two-year deployment may benefit from a medium-range four-year transmitter, while an AUV with an expected one-month mission may be better suited to a shorter-life transmitter with a longer detection range. EMTs are usually tracked actively and commonly use the ACT protocol for continuous transmissions. Sensors Sonotronics transmitters can also include integrated sensors that telemeter local environmental data to a remote receiver. Temperature sensors report the current water temperature in degrees Fahrenheit or in increments of 0.5 degrees Centigrade. Pressure sensors report the instantaneous pressure from the water and atmosphere above the sensor in pounds per square inch (PSI). This value can then be converted to units of length using a simple linear formula. Accelerometers provide raw movement data along three axes, which can be converted into values such as Overall Body Dynamic Acceleration (ODBA), general activity index (GAI), and tilt angle relative to gravity. ODBA and GAI are used mainly to assess fish physiology, while tilt angle is used to monitor underwater equipment, such as ADCPs, that must remain near vertical to function properly. ORDERING INFORMATION The following is a guide to the many possible variations and configurations of sensors for fisheries transmitters, note not all combinations are possible: Sensor Choices __Temperature __Pressure (depth) __Acceleration Transmit Protocol __ACT __SR1 __SR6 __Ops Burst Interval (time between complete protocol transmission) __Continuous __15 Sec __ 30 Sec __ 60 Sec __ Other Full Scale Values Temperature __127F __ 40C Pressure __ 50PSI __ 100PSI __ 200PSI __ Other Acceleration __ 3.44m/ __ Other Sensor Specific Values Accelerometer Derivation __ VeDBA __ ODBA __ SDM __ Other Sample Frequency __1.6 Hz __ 12.5Hz __ Other Sample Size _16 _32 _64 _128 _256 _Other <***> table of transmitters with pics of IBDT (showing sensor), graph of depth, EMT-AR ACCELEROMETER BASED ACOUSTIC FISHERIES TRANSMITTERS Sonotronics AT transmitters use an integrated 3-axis accelerometer to measure and transmit derived activity and movement parameters for a tagged animal. Unlike pressure or temperature sensors, meaningful activity measurements require multiple acceleration samples from each axis, which are then processed using a formula to produce a usable value. Two commonly used measures of movement and energy expenditure are VeDBA (Vectorial Dynamic Body Acceleration) and ODBA (Overall Dynamic Body Acceleration). Another configuration reports the sum of the maximum values of dynamic acceleration of each axes during a sample period (SMD). VeDBA VeDBA represents the magnitude of the dynamic acceleration vector and is calculated from the RMS value of ‘N’ dynamic acceleration samples from the x, y, and z axes where are sampled instantaneous values of the accelerometer are sampled, high pass filtered to remove the effects of gravity. One advantage of VeDBA is that it is relatively insensitive to the orientation of the transmitter implanted in the study animal. To maximize transmitter life, the accelerometer controls the sampling interval. The nominal sampling rate is 12.5 Hz, or 12.5 samples per second. The selected number of samples determines the sample interval and must be a binary value between 16 and 256. For example, at 12.5 Hz, a sample size of 256 results in a sample interval of 256/12.520.5 Seconds. ODBA ODBA is calculated by summing the absolute values of ‘N’ dynamic acceleration samples from the x, y, and z axes. Although ODBA can provide a slightly better estimate of energy expenditure, it is more sensitive than VeDBA to the orientation of the implanted transmitter and is typically used in laboratory conditions. SDM SDM is calculated by summing the maximum absolute values of dynamic acceleration samples from the x, y, and z axes during a given period: This value is helpful in comparing peak movements over multiple sample periods. SCALE and RESOLUTION Sonotronics transmitters report values from 0 to 255 using 8-bit resolution, so it is important to understand what each bit represents. For VeDBA measurements, a value of 1 corresponds to 1.38mg or 0.0135m/, and a full-scale value of 255*1.38mg ≈ 352mg ≈ 3.44m/. ODBA scaling should be selected carefully based on the sampling rate and sample size, because summed values can become large very quickly.

Sonotronics’ Equipment Marking Transmitters consist of high powered, long life transmitters placed in rugged, highly visible packaging. The EMT series transmitters come standard with flat ends and 3/16″ mounting holes on each end. Other custom packaging options are possible. EQUIPMENT MARKING TRANSMITTERS (EMT) Sonotronics’ Equipment Marking Transmitters consist of high powered, long life transmitters placed in rugged, highly visible packaging. The EMT series transmitters come standard with flat ends and 3/16″ mounting holes on each end. Other custom packaging options are possible. Notes * The EMT-01-3 has user replaceable batteries. **EMT-01-1 and EMT-01-2: Recommended maximum depth rating: 2500m. Transmitters have been tested successfully to 5000m depth. The EMT-01-3 replaceable battery unit is rated for a maximum depth of 1000m. Links: EMT Data Sheet EMT-01-3 Manual VIDEOS PRICES 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 MO: MODULE ONLY GENERATORS CHP-MO-HP Sonotronics is now offering versions of its acoustic transmitters as modules that use external power sources. The CHP-MO-HP may be mounted on an instrument package or underwater vehicle, taking advantage of existing onboard power sources. The 2 wire version of the CHP-MO-HP will begin transmission of a coded sequence as soon as power is applied, and alternatively a 3 wire version is available that allows separate transmit control. Key specs: 16mm (dia) x 40mm (length) External Supply: 2.8V-5.5VDC 75ma max, 2ma ave Frequencies: 32-40kHz, 69-83 kHz, crystal controlled Source level: up to 150db re 1uPascal @ 1m EMT-01-3HP-MO 32mm (dia) x 85mm (length) External Supply: 4.5V-15VDC 500ma transmit Frequecies: 32-40kHz crystal controlled Source level: up to 165db re 1uPascal @ 1m 4 wire (1m water blocked, jacketed cable) V+ = Red GND = BLACK Control+ (C+) = Orange GND = Brown Operation: with power applied to Red/Black, C+ open = off, C+ to GND = transmit Links: PRICES

UDR-Kit The UDR-kit contains all of the basic tools necessary for locating pingers 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. The UDR-Kit Includes: · UDR Receiver · UDR-BNC adapter · DH-4 Directional Hydrophone · Test Transmitter · Waterproof Pelican Case · Underwater headphones · Auto Power Battery Cable UDR: A narrow band Underwater Diver Receiver allows detection of transmitters from 30kHz to 90kHz, and displays the unique identification of individual transmitters. Transmissions from pingers are presented as an audio output and details displayed on the integral LCD. Several modes are available from detecting simple pingers, to decoding and displaying ACT coded transmissions and associated telemetry as well as R-code IDs. A received signal strength indication may be displayed to allow precise bearing to tagged equipment. DH-4 Hydrophone: A directional hydrophone designed to maximize range and provide directivity for locating transmitters. Other Accessories: A test transmitter included in the kit allows the user to test the equipment and the environment to determine expected range. The headphones and speaker allow for different methods of listening for transmitters. The auto power battery cable allows for the UDR to be powered and charged by a ‘cigarette plug’ outlet, while the extra battery pack allows for longer use when internal power is used. Options: External compass. Links: UDR-Kit Datasheet UDR Manual VIDEOS PRICES

Prices Click below to view Sonotronics PRODUCT OVERVIEW and PRICE LIST Click Here

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 PRICES

Sonotronics proudly introduces this new addition to available fisheries research technologies. This rugged, inexpensive, long life unit allows for detection of fish passage within its detection area. Strings, arrays, or individual receivers can be utilized depending on the resolution of detection desired in the study. One of the main principles behind the SUR is its ability to save valuable field time, potentially reducing project costs. SUR SUBMERSIBLE ULTRASONIC RECEIVER Sonotronics proudly introduces this new addition to available fisheries research technologies. This rugged, inexpensive, long life unit allows for detection of fish passage within its detection area. Strings, arrays, or individual receivers can be utilized depending on the resolution of detection desired in the study. One of the main principles behind the SUR is its ability to save valuable field time, potentially reducing project costs. The SUR brings new features and options to the marketplace aiding in the continued development of fisheries research technologies. Features 1. Frequency scanning – large numbers of unique transmitters 2. Ability to detect transmitters also used in manual tracking 3. Backwards compatibility with all Sonotronics transmitters 4. Ability to determine presence of data in the SUR without retrieving the receiver – “ping and response” 5. Ability to interface with a variety of communication systems: cellular and wireless 6. Long battery life: 8 months with typical configuration 7. Saves valuable time in the field reducing manual tracking hours The SUR is simply moored using the eye bolt on the bottom. Its natural buoyancy will keep the unit upright in the water column. Transmitters within the units detection area will be logged to the on board memory along with date and time. The SUR can be interrogated remotely for the presence of data, allowing it to be left alone with no data hits. Data is then downloaded via the serial port. The SUR is a stand-alone submersed unit which allows for detection and logging of the same transmitters used in manual tracking, including any Sonotronics past or present transmitters. The SUR is a scanning receiver allowing for transmitters on different frequencies to be logged, also allowing exclusive channels for specialty transmitters. SURsoft Free software for communications with the SUR’s – SURsoft. SURsoft can be used to set time and date, download data, program frequency scanning maps, and many other options. SURsoft now includes a data processing module (As shown on the figure). The data processing center can be used to process and examine the data obtained from SUR’s, saving valuable time in sorting data. Features include examining data by transmitter, processing telemetry data, and viewing a graphic display of activity at an SUR. The SUR’s available ping and response transponding allows researchers to “ping down” to the SUR on a separate frequency, asking it to “ping up” its status, which can be detected with a manual tracking receiver. The SUR transmits a ping sequence related to the presence/absence of data in its flash memory. On many projects, this can save field time as the units do not need to be retrieved to determine data presence. Accessories, Options, Ordering SUR22-BLE : This is a stand- alone device consisting of a battery system, microprocessor, 2Mb of flash memory, real time clock, hydrophone, ultrasonic receiver, and Bluetooth connectivity for wireless, high- speed downloads and configuration. SIT-01 : This is the SUR Interrogator Transmitter. This a 60kHz transmitter with a specific pulse rate used to interrogate SUR’s for the presence of data. Only one SIT is needed to service multiple SUR’s. SURBAT : This is a replacement battery for an SUR Links: Datasheets SUR SURsoft SUR-3BT Manuals SUR SUR-22BLE Software Downloads VIDEOS 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

Hydrophones Each hydrophone type has characteristics suited to different tracking needs. Directional hydrophones provide the longest detection ranges and can give an accurate bearing to a transmitter, but their larger, non-hydrodynamic design generally requires the boat to be stopped during use. Towed hydrophones are easier to deploy and can be used from a boat moving at trolling speeds, but they are more susceptible to noise from all directions and do not provide a bearing to the transmitter. For tracking over large surface areas, using both types is often the most effective approach. DH-4 Directional Hydrophone DH-ROV Hydrophone TH-2 Towed Omnidirectional Hydrophone 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 Active Tracking Hydrophones Data Sheet VIDEOS PRICES DH-ROV HYDROPHONE Length: 100mm Diameter: 60mm (2” PVC) Weight: 300 (air) Positive buoyant Depth: 90m (cable entrance) Cable: 50m polyurethane jacketed coax BNC terminated Links: Active Tracking Hydrophones Data Sheet Receiver Software VIDEOS PRICES 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 Active Tracking Hydrophones Data Sheet VIDEOS PRICES