With the update of our IBExU09 ATEX 1090X and IECEX IBE 14.0010X certification for resistance thermometers and thermocouples in intrinsically safe applications, we can now offer not only passive thermometers in the Rüster-I-BUZ system but also sensors with Ex transmitters (4-20 mA). These designs can be used in installations with explosive gases as well as in installations with explosive dusts.