A Universal Power Alert (UPA) device gives a clear, visual indication of any residual power within an electrical enclosure, leading to higher levels of safety for operating, service or maintenance personnel. The latest UPA-130 model, now available from Marsh Bellofram Europe Ltd, is a smaller unit which has been designed to be fitted in a standard 30mm diameter panel knockout, while the original UPA-100 fitted a 1.1/4” size conduit knockout.