uxcell DC 24V Electronic Red LED Flashing Alarm Buzzer Siren 100dB BJ-3 Product Name : Flashing Alarm Buzzer;Model No. : BJ-3;Rated Voltage : DC 24V Sound Pressure : 100dB;Light Color : Red;Overall Size : 64 x 42 x 43mm / 2.5" x 1.65" x 1.7" (L*W*H) Mounting Hole Diameter : 3.4mm / 0.13";Wire Length : 180mm / 7.1" External Material : Plastic;Color : White Net Weight : 31g;Package Content : 1 x Flashing Alarm Buzzer