12 VDC 85 dB buzzer for locks and strikes, used to signal that the door is opening.

12 VDC 85 dB buzzer for locks and strikes, used to signal that the door is opening.

Electrical characteristics Supply voltage: 12 Vdc Operating current: 25 mA Frequency range: 400 ± 100 Hz Response time: ≤ 50 ms Physical characteristics Dimensions: Diameter 2.5 cm, height 2 cm...