Unlike traditional designs, the 6mm 859 Series carries a top-mounted potentiometer for fine-tuning delay time without removing unit from DIN-rail. On-Delay mode can prevent simultaneous excess inrush ...

What is the point of reviewing a cheap timer module, especially if it is based on the ubiquitous 555 timer chip? Recently I got an ‘updated’ version of the common 555 timer relay module. This time it ...