ITEM NAME:2 pieces DC 3-24V 90DB Intermittent Alarm Buzzer Electronic Sounder W1E8 2 pieces DC 3-24V 90DB Intermittent Alarm Buzzer Electronic Sounder W1E8 Product name: Electronic buzzer Model: FM-27 Audio Production type: intermittent sound Rated Voltage: 12V DC; Operating voltage: DC 3-24V Rated Current: 30mA; Decibels: 90DB Color: as shown Resonance frequency: 3000 +/- 500 Operating temperature: -20 Grad Celsius to +60 Grad Celsius Overall size: 30 x 15 mm / 1.2" x 0.6" (D x H) Mounting hole diameter: 3 mm / 0.12" Mounting hole spacing: 40 mm / 1.6" Cable length: 10 cm / 4" Outer material: ABS Weight: 15g Package Content: 2 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 +/- 1-3cm..Rated Current: 30mA; Decibels: 90DB. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Mounting hole spacing: 40 mm / 1.6".