Model E-188 and TR-2465 are ultrasonic air transducers that operate at frequencies of 220 kHz and 150 kHz respectively. A unique design feature results in the air transducer having a narrow directional pattern completely free of side lobes. The transducer face is silicon. These air transducers are typically used in non-contact echo ranging or web detection applications, and are RoHS compliant.
The TR-89B comes in 23 kHz and 40 kHz versions, and can produce high sound pressure levels. These air transducers have an aluminum face, and are rugged and reliable.
The TR-2436 is a 150 kHz transducer that features a plastic housing that can be waterproof when mounted in an appropriate housing.
Contact a Massa Applications Specialist to discuss your specific sensing needs.
Photographs link to more information :
High Frequency, Narrow Beam Ultrasonic Transducer
Model TR-89B Series
Plastic Ultrasonic Transducer
Narrow Beam Ultrasonic Transducer