The GE Druck UPS-III-IS is an intrinsically safe loop calibrator, with its size making it rugged and extremely compact. The GE Druck UPSIII-IS measures 3.5 in x 5.5 in x 1.7 in (90 mm x 140 mm x 42 mm) and weighs just 16.2 oz (460 g). It is an essential tool for loop testing, instrument maintenance and valve set-up, with an easy-to-read display and simple-to-use time saving features.