High accuracy, electronic reference thermometer for checking the calibration of all types of thermometer/probe combinations Platinum resistance thermometer technology and permanently attached PT100 probe for highest system accuracy Displays temperature in °C Complete with 5 point UKAS Certificate of Calibration Auto switch off Supplied with hard carrying case Sensor Type Measurement Range Scale Resolution System Accuracy at +23°C Operating Temperature Range UKAS Certificate Calibration Points Battery type Battery Life PT100 -100°C to +199.9°C °C 0.1° ±0.2°C 0°C to + 40°C -18°C, 0°C, +5°C, +8°C, +20°C 9V IEC 6LF22 alkaline 100 hours