... -485 data, replace Rs-485 cables wireless PTZ controller, data wireless transmitter : YS-C20U RF moduleFor the application ... ; * RS-485 wired multi-drop system changeover wireless system; * Wireless remote control, Environment monitor, telemetry system; * ... , Wireless Data Acquisition, Wireless sensor, SCADContact: JaneTel: 86-755-8375 6095 PTZ wireless controller, wireless PZT, RF transmitter replace ...