BasicTimer 4X is a bundle of hardware and software, designed for time-based switching on 4 channels. Intervals of working and pause time can be configured for each channel separately from 1 second to 1 year.
The device supports two working modes: independent and cyclic repetition. In the independent mode, the relays turn on and off, independently of each other. In a cyclic repetition, the relays turn on and off in order 1. 2. 3. and 4. relay.
A detailed operational guide can be read on the wiki page, and the configuration and monitoring software can be downloaded here.