12MM 40KHz split ultrasonic transceiver, an ultrasonic sensor, the probe TCT40-12R / T (diameter 12mm) (Price per suit 2pcs)

2MM integrated ultrasonic transceiver and receiver dual functions ? (Diameter 12mm) ??? 1 Nominal frequency (KHz): 40KHz ??? 2 emission sound pressure at 10V (0dB = 0.02mPa): ≥ 117dB ??? Receiver sensitivity at 40KHz (0dB = V / ubar): ≥-65dB ??? 4 Capacitance 1KHz, <1V (PF): 2000 ± 30% ? How to use Transmitter Structure Open structure type Center frequency 40.0 ± 1.0KHz Sound pressure level 112dB min. Sensitivity Capacitance 2400Pf ± 20% The maximum input voltage 60Vp-p Polarity 60 ° ± 15 ° (-6dB) Operating temperature -20 ° C ~ + 70 ° C Storage temperature -40 ° C ~ + 85 ° C