Testo 922 Thermometer Portable thermometer for 2 type K thermocouples.2-line LCD display allows 2 temperatures to be viewed simultaneously.Calculation of temperature differential.Possible to date measurements and export them to an infrared printer.Hold, min. and and max. functionsAuto power-off if not being used.Infrared printer, available separately, is supplied with 4 batteries and 1 roll of paper. Range of measurement: 50 C +1000 C Accuracy: - type K: 1 C 0.5% of the reading (40 C 900 C) 2 C 1% of the reading (rest of range) Supply: 1 9 V PP3-type battery Dimensions: 182 x 64 x 40 mm Weight: 171 g