40KHz Open Ultrasonic Sensors (Pair)Transducer Transmitter and Receiver Pair. These transducers are very useful in making various sensors for detecting obstacles and measuring distances.
FEATURES of Open Ultrasonic Sensors (Pair):
Use for motion or distance sensing
Frequency: 40kHz ±1.0kHz
Aluminum case
Capacitance: 2000pF ±20%
Transmitter: bandwidth 5.0kHz/100dB, sound pressure level 112dB/40 ±1.0kHz
Receiver: bandwidth 5.0kHz @ -75dB, min. sensitivity 67dB/40 ±1.0kHz (0dB vs. 1V µbar) R=3.9k.
Lead length/spacing: 0.28″
Case size: 0.30″H x 0.43″ Dia.
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