AIRMAR’s low profile ultrasonic transducer features a robust PEEK housing suitable for in-pipe flow monitoring systems. As an essential part of a these system, our transducers are deployed for measuring sewage levels, pipe flow rate, potential blockage detection as well as irrigation ditch water levels. OEM’s have their choice of M16 or M28 THREADED housings.

Applications
In-Pipe Flow Monitoring
Open Channel Flow
Wastewater Industry

AIRMAR’s low profile ultrasonic transducer features a robust PEEK housing suitable for in-pipe flow monitoring systems. As an essential part of a these system, our transducers are deployed for measuring sewage levels, pipe flow rate, potential blockage detection as well as irrigation ditch water levels. OEM’s have their choice of M16 or M28 THREADED housings.

Applications
In-Pipe Flow Monitoring
Open Channel Flow
Wastewater Industry

Designed for AUVs and ROVs

The 200m Mini Altimeter Kit is an ultra-compact altimeter kit designed for measuring height off the sea floor and underwater structures. Rated for up to 1,000 meters, the 200m Mini Altimeter delivers 99.4% accuracy at full 200 meter range with output resolution to 1 cm. The 200m Mini Altimeter delivers excellent performance from a small, lightweight configuration optimized for use on USVs and AUVs. The sensor is available in either 170 kHz or 200 kHz. With low power consumption of just 150 mA at 12 V, the 200m Mini Altimeter is perfect for powerlimited vessels. Optional water temp sensor available.

In full auto mode, the sounding rate is variable with depth; in manual mode, the sounding rate is configurable to run up to 10X per second. The data output rate and ping rate are the same in manual mode, and one ping produces one depth output. In full auto mode, the data output rate is configurable (0.1 to 25 seconds per interval). The 200m Mini Altimeter communicates NMEA 0183 serial data protocol over RS232 or RS422.

The kits consist of a 1000 m rated transducer with 15.5" (39.4 cm) cable with connector, matching bulkhead connector, transceiver board with mounting hardware, and wiring diagram. Water temp sensor optional.


View the Design Spec
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High-Strength for Harsh Environments
The high-strength, cast-steel CS229 stands up to harsh environments. It has been designed to facilitate service or repair. The transformer can be accessed from the top of the housing for a quick, field repair or impedance change. The transducer is removable from the outer, thru-hull housing and can be replaced while a vessel is underway.

Applications
Large, steel-hull vessels
Harsh environments including ice filled water
Navigation and survey
Steel hulls only

Versatile Sensing
The M153 is our smallest, trawl-mount transducer that installs in a flooded pod. Connection to the trawl cable is easy with the included MacArtney SUBCONN® underwater connector. This transducer can also be used in altimeter applications on ROV and AUVs.

Applications
Trawl monitoring

Low-Cost Dual-Frequency
This low-cost “blister-type” transducer combines two popular fish finding frequencies in one housing. Its design is easier and less costly to install than magneto-restrictive transducers requiring steel tanks. The dual-frequency 28 kHz and 200 kHz models offer high and low-frequencies for species specific fish finding. The single-frequency 38 kHz model features a highly-effective, thirteen-element array that has excellent, deep-water, fish finding performance.

Applications
Commercial fishing vessels
Shallow to deep-water fish finding

Precise Measurement
The mid-size M157 features low-frequency, elements for precise measurement of trawl-net openings and distance to the bottom. Connection to the trawl cable is easy with the included MacArtney SUBCONN® underwater connector.

Applications
Trawl monitoring

Mid-Range Beamwidth
The M159 was specifically designed for retrofitting to popular 30 kHz, 33 kHz, and 50 kHz net sounders. Its mid-range beamwidth can be used to measure a trawl-net’s distance from the bottom or surface. Connection to the trawl cable is easy with the MacArtney SUBCONN® underwater connector.

Applications
Trawl monitoring

Single and Dual-Frequency
This version of Airmar’s M163 is available in two configurations. The first packs a 28 kHz, 2 kW array in a compact, SEALCAST™ housing. The second configuration uses nine, ceramic elements that resonate at both 28 kHz and 50 kHz and results in a very compact, dual-frequency transducer. The 75 kHz, M163 features an efficient highly-sensitive 19-element array. Its design is easier and less costly to install than magno-restrictive transducers requiring steel tanks. Both configurations have very high-efficiency and sensitivity for their size, resulting in excellent deep-water performance. The 33 kHz, 200 kHz, and 210 kHz, dual-beam transducers have conical beam patterns and minimal sidelobes that provide accurate depth measurements in both shallow and deep-water.

Applications
Shallow and deep-water survey
Commercial fishing vessels

Versatile
The versatile M172 uses a custom base for external mounting, or it can be mounted in a tank. This compact housing features two medium to high-frequency elements for unique applications. The low-ringing (lq) versions allow fishermen or surveyors to see bottom structure more clearly and fishermen to distinguish target fish from the bottom.

Applications
Commercial fishing vessels
Survey depths to 300 m (1000')

Versatile
The M175 low-frequency 12 kHz, 24 kHz, and 28 kHz arrays produce good bottom detail in deep-water. The 28 kHz packs up to 3 kilowatts of power in a compact, moderately-priced transducer. The 38 kHz model with 34 elements produces very high source levels, allowing deep-water detection of weak targets. The highly efficient and highly sensitive ceramic-element arrays provide exceptional deep-water fishfinding.

Applications
Deep-water survey
Mid-sized commercial fishing vessels

Unparallel Deep-Water Fish finding
The M176 transducer is available in a low and a mid-frequency. Single or dual-frequency models feature high efficiency and sensitivity for unparallel, deep-water fishfinding and surveying. The versatile housing accommodates 12 kHz, 28 kHz, or 70 kHz with a 200 kHz array.

Applications
High-powered fishfinders
Deep-water fishfinding
Deep and shallow-water survey

Exceptional Bottom Detail
M187 features a low-frequency, narrow-beam array for exceptional deep-water performance and sub-bottom detail. Because the array is highly efficient and low-ringing it gives exceptional bottom and sub-bottom profiling.

Applications
Deep sea survey
Sub-bottom profiling

Excellent Deep-Water Performance
M190 features a large, low-frequency, narrow-beam array for excellent, deep-water performance. The 12 kHz model can be used for sub-bottom profiling.

Applications
Deep sea survey
Sub-bottom profiling

Dual-Frequency
The M191 features dual-frequency capability in a compact, lightweight housing. These frequencies have low sidelobes, which focus more energy on target and provide good definition in hard-bottom areas. The low-ringing (Q) versions give clear, bottom detail and are especially effective at surveying in extremely, shallow-water.

Applications
River, harbor, or estuary survey

Innovative Technology
Airmar’s commitment to innovative technology has produced the M194. This broadband 200 kHz transducer has a Q of 2 and very good sensitivity. It enables users to perform accurate surveys in shallow-water with high resolution. This transducer can also be “chirped” with a long pulse over a wide-frequency band. Users with adjustable-frequency echosounders will be able to regulate the operating frequency and tailor the beamwidth to specific survey conditions.

Applications

River, harbor, and estuary survey
Shallow-water survey

Clearly See Bottom Structure
The M42 is a large, “blister-mount” housing which accommodates 24 ceramics resonating at 38 kHz. The narrow-beam, low-ringing, 38 kHz array allows fisherman to see bottom structure clearly and to easily discriminate between bottom structure and target fish.

Applications
Commercial fishing vessels

Description
Innovative Technology
Airmar’s commitment to innovative technology has produced the SS510. This broadband 200 kHz transducer has a Q of 2 and very good sensitivity. It enables users to perform accurate surveys in shallow-water with high resolution. This transducer can also be “chirped” with a long pulse over a wide-frequency band. Users with adjustable-frequency echosounders will be able to regulate the operating frequency and tailor the beamwidth to specific survey conditions.

Applications
River, harbor, and estuary survey

Innovative Technology

Airmar’s commitment to innovative technology has produced the SS538. This broadband 200 kHz transducer has a Q of 2 and very good sensitivity. It enables users to perform accurate surveys in shallow-water with high resolution. This transducer can also be “chirped” with a long pulse over a wide-frequency band. Users with adjustable-frequency echosounders will be able to regulate the operating frequency and tailor the beamwidth to specific survey conditions.

Applications
River, harbor, and estuary survey

The SS549 is designed for shallow water and coastal survey applications where high frequency and narrow Beamwidth are required. The narrow 3° beam and low side lobes result in high precision survey. The stainless steel housing with threaded stem makes this model easy to mount.

Applications
River, harbor, coastal, and estuary survey