Simple slant (tilt) alarm switch circuit


This is a simple alarm circuit.This work, when the switch S1 (sensor) tilted away from vertical.The alarm stops when the sensor back to the old form.
S1 sensor is a mercury switch.Contact is a normal closed.When the switch is placed in a vertical.Transistor Q1 acts as a switch off,
buzzer immediately.When the sensor back to the original vertical position. Completion of all the circuits can be packed into a small box.Which is used as a tilt meter.

Alarm switch circuit


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