DC 12v 10A relay wireless RF Remote Control Switch Transmitter Receiver 433MHZ - 1 Channel - Without Case

What is the RF signal ? 

RF (Radio Frequency) signal is an electromagnetic wave used for wireless communication and broadcasting. It operates in a frequency range of 3 kHz to 300 GHz, which is used for various applications such as remote controls, radio and TV broadcasting, Wi-Fi, cell phones, and GPS.

DC 12v 10A relay wireless RF Remote Control Switch Transmitter Receiver 433MHZ - 1 Channel - Without Case

The 433 MHz frequency card is a remote-controllable relay card that can be used in various electronic and robotic cards, remote-controlled systems, and remote-controlled structures. The card is single-channel and the state of the relay on the card (normally open or closed) can be adjusted as desired. Additionally, it provides encryption and transmitter identification features, allowing multiple receivers and transmitters to be used on the same frequency.

Note: The RF remote is not included in the product package.

The technical specifications of the 433 MHz frequency relay card include a working voltage of 12V, current values of 10A (28VDC) - 10A (250 VAC) - 12A (125 VAC), 1 channel, and the ability to pair with up to 20 remote controls. It can work reliably from a distance of approximately 50 meters in open areas, but the range may decrease in closed areas depending on factors such as wall thickness, the battery status of the transmitter, and the level of interference in the environment.