REMlive is a UK based manufacturing company who specialising in providing warning of electricity present, helping to make working with electricity safer.
CSE has for many years supplied and sold on-line the REMLive RL4-e, REMLive Micro and REMLive MRL-1 Mini 24. The RL4 gives an indication of electrical voltage being present and works on voltages from 24V to 700vac / 1000vdc. Â Click for a more detailed specification page on the RL4 and the video below for it being used.
Alternatively, REMlive has produced a video showing how their RL4-4 works inside a control panel / switch and mounted on standard DIN rail.