Designed for taking reliable thickness measurements in Zone 0 Explosive Atmospheres, the Cygnus 1 Ex is certified intrinsically safe to ATEX, IECEx, UKEX for Zone 0 and NRTL for Class 1, Division 1. The Cygus 1 Ex boasts advanced data logging, manual measurement mode, features a large colour LCD display and offers 3 measuring modes for through-coat measurements and various materials - including heavily corroded metals.