SunRobotics SW-520D Tilt switch Tilt Sensor Metal Ball Tilt Shaking Position Switches - Pack of 20 Electronic Components Electronic Hobby Kit

The tilt sensor is a component (switch) that can detect the orientation of an object (upright or not). It is equivalent to a pushbutton activated through its physical orientation. It contains a metallic ball inside that will commute the two pins of the device from CLOSED to OPEN if the sensor exceeds a certain angle and vice versa. Only when the tilt sensor is in its upright position, metallic balls inside the tilt sensor bridges the two contacts, completing the circuit. When the sensor is tilted beyond the sensitivity range, the contacts moves away, and thus opens the circuit.