Relay Timer R4X is programmable timer software for setting timing features of the relay. It works with 4-channel relay controller boards of National Control Devices.

Support 4-channel relay boards and auto start after logging in Windows.

Support Network and Com Port connection between PC and relay board.

Detect connection status between PC and relay board continuously.

Remind after disconnection and recover after reconnection automatically.

Turn on/off relay manually and automatically according to schedule setting.

Support multiple schedule setting and powerful setting with recurrence options.

Automatically switch to auto mode from manual mode after specified time.

Update and display the current status of relay simultaneously.

Schedule setting can be saved for later loading.