The ITC-9040 40 kHz air transducer is designed for a variety of ultrasonic sensor manufacturers products. Its narrow beam makes it a good choice for demanding, longer-range proximity, position and level sensor manufacturers applications. It can be used as a professional transmitter, receiver or both as needed. The seamless Kynar housing makes it perfect for applications in harsh environments. The housing comes with an M20 x 1.5 threaded mount.