$12.99 (as of 08/02/2021 01:19 PST details )
Features:
- Nominal frequency KHz 40KHz
- Emission sound pressure at10V 0dB 0.02mPa 110dB
- Receiver sensitivity at40KHz 0dB V ubar 75dB
- Capacitance at1KHz, 1V PF 800 30%
- The part with T is the Transmitter the part with R is Receiver