Dimension(mm): 18CenterFrequency(KHz):40Soundpressurelevel(dB):Min. 94@40KHz(0dB=0.02MPa)ReceiveSensitivity (dB):Min. 75 @40KHz(0dB=V/uPa)Capacitance(PF):2300 30%Operatingtemp.(℃):-40~+80Weight(g):100Material:AluminiumTerminal:WiretypeEnvironmentalProtectionRegulation:RoHS