... /RS485/TTL to wrieless. 10km range YS-C30H 5W 433Mhz RF moduleSpecifications * RF power: ≤5W /37dBm; * Receiving current: <30mA; * ... -232/ RS-485/ TTL/USB optional; * Multi-channels: 8 channels, expandable for 16/32 channels; * Baud rate in air ... : POS, PDA, PTZ; * RS-485 wire multi-drop system changeover wireless system; * Industrial Automation, PLC Control, Wireless Data Acquisition, SCADA; ...