Abstract: A door lock alarm includes a housing affixed to a door panel that carries a door lock and is hinged to a door frame, and a sensor including a circuit substrate mounted in the housing, a microprocessor installed in the circuit substrate, a sensor component electrically coupled to the microprocessor to face toward the door lock for detecting the presence of the latch bolt of the door lock in the locking position and providing a corresponding signal to the microprocessor so that the microprocessor activates alarm to give off an alarm signal upon receipt of the signal from the sensor component.

Abstract: A multi-control light regulator includes a microprocessor, a regulator including a rectifier electrically connected to a power source and a LED lamp and a drive circuit electrically connected to the rectifier and the microprocessor, and a sensor electrically connected to the microprocessor and the power source. Thus, the microprocessor determines the LED lamp to be dimmable or non-dimmable subject to the operation of the regulator and gives a proper control to the LED lamp.