Feature

●Loud of volume: 80 dB; The electronic buzzer will make a loud and continuous tone when powered.
●Rated voltage:12 V DC.Working voltage:3-24 V DC; Work well over the rated voltage range you can vary the voltage or use PWM to control the volume.
●Rated Current: 12mA; Weight of one Buzzer: 4g; Cable Length: 10cm/3.9 Inch; External Material: Plastic.
●Electronic Buzzer Body Diameter: 23mm / 0.91 Inch; Hole distance: 30mm/1.18 Inch; Operating temperature of Buzzer: -20°C to 60°C; Storage temperature of Buzzer:-30°C to 70°C. Model:SFM-20B.
●Package Contain: 8x Buzzer.


Description

Product Description Length of Wire: 10cm/3.9 Inch Diameter: 23mm / 0.91 Inch Rated Voltage: 12V Range of Voltage: 3-24V Rated Current: 12mA at 12VDC Sound Pressure Frequency: 87dB at 12VDC Resonant Frequency: 3.3±0.5KHZ Operating Temperature: -20+60℃ Storage Temperature: -30+70℃ Package Includes: 8× SFM-20B DC 3-24V Electronic Buzzer Alarm Sounder