Cygnus Instruments offers the world’s first and only digital multiple echo metal thickness gauge in 1983 that is certified for use in potentially hazardous atmospheres without the fear of causing explosions. This gauge is used by engineers or NDT inspection staff is areas designated Intrinsically Safe without the need for a hot work permit. This gauge is certified by CSA (North American) and BASEEFA (European). The gauge can be used in chemical plants, oil refineries, offshore platforms, grain processing plants, fuel depots or in mines. As well as being intrinsically safe the Cygnus 1 Intrinsically Safe gauge is extremely rugged and is suited to harsh environments.