Accuracy of ± 0.05 °C (± 0.09 °F) over full range Intrinsically safe (ATEX and IECEx compliant) Two models to choose from (-50 °C to 160 °C or -80 °C to 300 °C) User-configurable temperature Trend/Stability indicator Display temperature in °C or °F Optional data logging to internal memory 300-hour battery life Percent battery-life and low-battery indicator > Each Unit Includes User’s Guide on CD-ROM 3 AAA batteries 1552A-12-DL Thermometer, Fixed PRT, -80 °C to 300 °C, 6.35 mm x 305 mm (1/4 in x 12 in) with Datalog