Kepo piezo transducers 10 45 05khz range kepo kpt g1910 6239 the kepo piezo transducer 27 05khz 23mm is able to generate a continuous tone when energised by a 10vp p square wave rated voltage outputs of up to 90db at 10vp p27khz10cm can be achieved suitable for use in professional commercial and industrial applications kepo kpt g1910 6239 piezo transducer 27 05 khz 23mm