Relay Timer R8X PPC is an application for Pocket PC. It can run on PPC2003SE, WM5.0 and WM6.0. It is used to control 8-channel ProXR relay controller boards of National Control Devices (NCD). It supports Net Work and Com Port connection between Pocket PC and relay board. The conncection status is detected and shown continuously. It will remind after disconnection and auto recover after reconnection. Each relay can be programmed separately with multiple timers. Relays can be turned on/off manually and auomatically according to schedule setting. The current status of relay is updated and displayed simultaneously. It controls the relay with very precise timer, while consuming the processor's resource at very low level.