4 Channels 5KM Long Range Wireless Remote Switch with Dry Contact Output
This series of wireless remote switches are super long range remote control switches. They are developed by LORA (Long Range) wireless communication technology, so it has ultra-long working distance, ultra-high receiving sensitivity, superior anti-interference ability, and smaller power consumption. They use a transceiver chip to implement bidirectional communication. Their ideal working distance is up to 5 kilometers, which is an excellent device for remote control and long-distance communication.
These long range wireless remote switches feature 4 channels of dry relay output. Dry relay output is also called dry contact output, which is a form of passive switch output. Its key feature is that the internal contacts of the device are isolated from the power supply, that is, the control circuit of the relay itself has no electrical connection with the load circuit. Instead, the circuit is turned on and off through physical contacts, that is, the power supply of other devices is controlled by the closing or opening of the switch contacts. When the contacts are closed, the circuit is connected, allowing current to pass, and the connected device starts working; when the contacts are open, the circuit is disconnected, the current cannot pass, and the connected device stops working.
These long range wireless remote switches consist of long distance RF transmitter and receiver to form a wireless remote-control system. It can remote control different AC or DC equipment on land, water, and air, such as lights, doors, windows, lamps, sockets, locks, sirens, outlets, heaters, motors, fans, winches, curtains, blinds, linear actuators, electric solenoid valves, and security alarm systems.
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How to Pair Remote to Receiver
How to Set Working Mode of Wireless Switch