400 KHz Air Transducer. Water proof and it is Transmitter/Receiver on the same unit.
Housing Material: AluminumDimensions: 10mm X 10.5mmNominal frequency fr: 400kHz ± 2%Wires/Connections: 0.6mm contact PinSensitivity: -80dB min (0dB=100Vp-p,Term:10,Range:10cm)Transmitting Beam Angle（-6dB): 7±2°Detecting Range: 0.1m ~ 3mCapacitance: 170pF±20 %Dead Zone: ＜0.03mMax. Input Voltage: =100 Vp-p (2% duty cycle tone burst)Protection Class: IP65Working Temperature: -30～80℃Test Condition: 22±3 °C 40~70% R.H.Applications, among others, are: Distance Meter, Distance Sensor, Sound Detector, Robot Navigation, Send/Receive data, locating, Flow measurement, traffic measurement.Notes: Minimum sensor range: 10cm. Maximum sensor range: 3m (Pulse-Echo Mode). Actual range may vary, depending on drive Circuitry and signal processing.