SFM-27 SHD4216 Alarm Electronic Buzzer Beep Alarm Continuous/Intermittent Sound DC 3-24V 12V High-decibel for Arduino Car Van

SFM-27 

Parameters:

• Rated voltage: 12V

• Voltage range: 3-24V

• Rated current: 15MA at 12VDC

• Acoustic piezoelectric frequency: 100dB at 12VDC/30cm

• Resonant frequency: 2.5±0.5KHZ

• Working temperature: -20~45 degree

• Storage temperature: -20~60 degree

SHD4216 

Parameters:

• Rated voltage: 12V

• Voltage range: 3-24V

• Rated current: 12MA at 12VDC

• Acoustic piezoelectric frequency: 100dB at 12VDC

• Resonant frequency: 3.0±0.5KHZ

• Working temperature: -20~45 degree

• Storage temperature: -20~60 degree