CHARACTERISTICSPartnumberTCT16K40T(M1)TCT16K40R(M1)ConstructionOpenstructuretypeOpenstructuretypeUsingMethodTransmitterReceiverCenterfrequency40.0 1.0KHz40.0 1.0KHzSoundpressurelevel114dBmin.----------------Sensitivity-----------------68dBmin.Capacitance2500Pf 20%2500Pf 20%Maximuminputvoltage20Vrms20VrmsDirectivity60 15 (-6dB)60 15 (-6dB)Operatingtemperature-20℃~+70℃-20℃~+70℃StorageTemperature-40℃~+85℃-40℃~+85℃ OUTLINEDIMENSIONS(UNIT:mm)