The battery powered DM540 and 640 range provide digital temperature readouts in a dial style indicator housing, and offers an advantage over the traditional bimetalic or gas filled dial thermometers. These products feature max/min logging or ATEX options, and can accept standard pt100 or thermocouple sensors. The Loop Powered DM500 and 700 range provide a 4 digit panel or in head display of process value - which can easiliy be programmed to your requirements.