Feature:1. WIRELESS TRANSMISSION: Users can use multiple wireless transmission modules for data transmission without laying too many long signal transmission lines2. EASY TO USE: The module only needs to be powered on and connected to the RS485 equipment to realize data transmission between each other, which is very convenient3. STABLE CONNECTION: You can operate the RS485 device at a remote end to prevent data transmission failure due to signal rust, broken connections, or poor contact4. EASY TO OPERATE: The module only needs to set two parameters, which can be set through the dip switch, simplifying the parameter setting process, very user friendly5. WORKING PRINCIPLE: The data signal received by RS485 can be converted into wireless signal, wireless communication in a certain distance and the other end of the wireless transmission module, the other end of the wireless transmission module to receive wireless signal, and then converted into RS485 signal outputSpecification:Item Type: Wireless Transceiver ModulePower Supply Voltage: DC 8-25V (12V is recommended)Working Current: 18-30MABaud Rate: 9600, 19200, 38400, 115200. The default value is 9600, N, 8, and 1Wireless Operating Frequency: 426MHz~508.5MHz, 16 channels, 5.5MHz channel interval, default 426MHzTransmitting Power: 20dBmReceiving Sensitivity: -121 DBMWireless Transmission Distance: Approx. 800 ~ 1000meter / 2624.7 ~ 3280.8ft (open space without shelter)Communication Port: RS485Up to 63 modules can be cascaded by changing the 485 address(more than 16 modules, using an RS485 repeater).Package List:1 x Wireless Transceiver1 x Accessory