Review on π BNYZWOT Active Piezo Electric Buzzer Alarm DC 3-24V - 10Pcs - Continuous Beep, Electronic Sounder by Leslie Matlak
Works well with horns and sirens
I bought these for a project in my class of kids to make morse code boards. All were functional. Although one didn't last long. So you're not sure if they're empty or how many times you could use them. But overall they were ok.
- Operating Voltage: 3-24 VDC; Rated Voltage: 12VDC; Maximum rated current: 12mA; Minimum Audio Output: 85dB, Frequency Response: 3300 +/- 500Hz.
- weak
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