uxcell DC 3-24V 30mA Industrial Continuous Sound Electronic Buzzer 80dB Product Name : Electronic Buzzer;Model No. : SFM-27-I;Sound-making Type : Continuous Sound Rated Voltage : DC 3-24V;Rated Current : 30mA;Sound Pressure : 80dB Operating Temperature : -20C to +80C;Body Diameter : 30mm / 1.2";Overall Size : 48 x 30 x 15mm / 1.9" x 1.2" x 0.6" (L*W*H) Mounting Hole Diameter : 3.7 x 3.2mm / 0.14" x 0.12" (L*W );Wire Length : 11cm / 4.3";External Material : Plastic Color : White;Weight : 5g;Package Content : 1 x Electronic Buzzer