Models 868 digital RTD thermometer measures temperatures from -360°F to 1100°F. Compatible with either 3 or 4 wire RTDs, temperature measurement is performed with a best accuracy of .4°F. These thermometers are specially constructed with a heavy duty ABS case specifically designed for industrial use. Model 868 reads in °F. An optional tilt stand/belt clip, PN8660, is available for field or bench top use.