SFM-27 Continuous Sound Alarm Buzzer - White (DC 3~24V / 5-Piece Pack)
Color: White - Model: SFM-27 - Rated voltage: 12V - Voltage range: 3~24V (2014/11/19 updated) - Rated current: - Sound pressure level: >/= 90dB - Resonant frequency: 3000+/-500Hz - Working temperature: -20~60 degree - Cable length: 10cm - Contains 5 pieces per pack