KL3 type microwave electronic switch circuit

Relevant key device information applied in this article: KL-3 LM324 C3355 TLC336 78L12 C9015 KL3 microwave electronic switch is made using the principle of electromagnetic wave Doppler effect. The entire circuit is encapsulated in a plastic shell with four leads on the outside. The two red lead wires are connected to the AC 220V power supply, and the two green lead wires are connected to the controlled load. They are suitable for automatic lighting control or anti-theft alarm devices.