Jameco Valuepro 11D3120-LF-TA Audio Indicator and Alerts Buzzer Piezo 25 mA 12V Screw Jam Nut Go to amazon.com Related posts Top 10 best alarm buzzer 12v: Which is the best one in 2022? FeatureDual Tone, continuous or fast pulseOperating Voltage: 12V @ 25mAVoltage range: 4-16vSound output: 95dBFrequency: 2900Hz DescriptionSize: 1.4"H x 1.7"Dia. (34.5mm H x 43.5mm dia.).