TOOGOO(R) SFM-27 DC 3-24V 12mA Industrial Continuous Sound Electronic Buzzer Product Name : Electronic Buzzer;Model No. : SFM-27;Sound-making Type : Continuous Sound;Rated Voltage : DC 3-24V Rated Current : less than 12mA;Sound Pressure : more than 95dB;Operating Temperature : -20C to +45C Body Diameter : 30mm / 1.2";Overall Size : 47 x 33 x 25mm / 1.85" x 1.3" x 1.0"(L*W*H);Mounting Hole Diameter : 3.5mm / 0.138" Mounting Hole Distance : 38mm / 1.5";Wire Length : 11cm / 4.3";External Material : Plastic Color : White;Weight : 11g;Package Content : 1 x Electronic Buzzer