Timeguard ds2 electronic time delay switch timeguard ds2 the timeguard ds2 electronic time delay switch is a single gang push button delay switch with centre button neon light on times for the timeguard ds2 are adjustable via a tamperproof potentiometer from 10 seconds to 2 hours approx in 4 ranges selectable by 2 position dil switch timeguard ds2 electronic time delay switch