Thermistor Thermometer, Temp. Range (F) -58 Degrees to 500 Degrees F, Temp. Range (C) -50 Degrees to 250 Degrees C, Accuracy +/-1 Degrees C, Standards ISO 17025 A2LA Accredited Calibration Laboratory, Battery Type LR44, Resolution 0.1 Degrees C (-20 to 200), 1 Degrees C (Below -20 or Above 200), Display LCD, Features Magnetic Back for Placement On A Metal Surface, NIST Calibration Certificate, Includes Traceable (R) Certification, Manufacturers Warranty Length 1-1/2 yr