Wahl 392 High Performance Platinum RTD Meters offer exceptional accuracy and long-term stability in a versatile meter system with interchangeable probes. Meter range is -290 to 1450°F. Meter accuracy is ±0.1° F/C at 32°F (0°C). Complete tracing of the platinum standard DIN 43760 to 0.1°F conformity over ther entire temperature range. Readings updated 2.5 times per second. Bright 0.33" high-visibility LED display. Maxi-Temp holds peak temperature reading. Tough, drop tested meter assembly. Interchangeable, 4-wire snap-in connection HP Series probes. Automatic compensation for probe calibration of temperature at ice point and alpha. Noise suppression circuit. NIST traceable conforming to ITS-90. Includes 11681-1 NiCad Battery Pack.