ITEM NAME:DC3-24V Industrial Continuous Sound Electronic Alarm Buzzer 85dB D5H7 DC3-24V Industrial Continuous Sound Electronic Alarm Buzzer 85dB D5H7 Product Name : Electronic Buzzer; Type : Continuous Sound Rated Voltage : DC 3-24V; Sound Pressure : 85dB; Overall Size : 48 x 30 x 15mm / 1.9" x 1.2" x 0.6" (L*W*T) Mounting Hole Diameter : 3mm / 0.12"; Wire Length : 10cm / 3.9" External Material : Plastic; Color : Black Weight : 8g; Package Content : 1 x Electronic Buzzer Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.