Kepo piezo transducers 10 45 05khz range kepo kpr g3010 6250 the kepo piezo transducer 13 05khz 35mm is able to generate a continuous tone when energised by a 12vdc rated voltage outputs of up to 75db at 12vp p13khz30cm can be achieved suitable for use in professional commercial and industrial applications kepo kpr g3010 6250 piezo transducer 13 05 khz 35mm