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Hua Yun 20 Key RF 433 Remote Control HY-021
RF remote control, is a wireless electromagnetic wave signal to achieve the control of by the electrical equipment, they can command or drive other corresponding mechanical or electronic equipment to complete various operations, such as closing the circuit, moving the handle, starting the motor, and then the machinery to carry out the required operations. As a kind of remote control supplemented with infrared remote control, it has been widely used in garage doors, electric doors, road gate remote control, burglar alarm, industrial control and wireless smart home.
