5PCS Piezo Buzzer SFM-27 DC 3-24V 90dB Electronic Active Buzzer High-Decibel Beep Alarm Continuous Sound for Arduino DIY
5PCS Piezo Buzzer SFM-27 DC 3-24V 90dB Electronic Active Buzzer High-Decibel Beep Alarm Continuous Sound for Arduino DIY
Working principle: There is a simple oscillation circuit inside the buzzer, which can convert the constant direct current into a certain frequency, so as to realize the alternating magnetic field and drive the aluminum sheet to vibrate and sound. Features: This buzzer can meet your DIY needs and you can have fun. Whether teaching needs or DIY, this buzzer SFM-27 is a good choice. The buzzer alarm is 90dB at 12V DC 30cm, and the more the voltage the louder the sound. There are five in a pack. If you have extra, you can keep it as a spare or give it to your friend!
Product Features
- [Product Name]: Electronic Alarm Buzzer SFM-27 (Continuous Sound)
- [Specification]: Rated Voltage: DC 12V; Operating Voltage: 3 to 24V; Rated Current: 30mA; Operating Temperature: 20C to +60C
- [High Decibel]: This mini electronic beeper support DC 3-24V power supply and produce continuous high-decibel alarm sound up to 90dB.
- [Application]:Widely used in car modification, DIY electronic reminder projects or other fields that require audible alarms. For small electronic products such as musical greeting cards, electronic doorbells and electronic toys.
- [Package included]: 5 pack SFM-27 active piezoelectric electronic buzzer module.