Digital Thermometer with data logger

APPA 55II Digital Thermometer with data logger  Large LCD display ( 18.5mm)  Dual thermocouple input ( 52, 55II)  Differential temperature ( T1-T2) ( 52, 55II)  Triple 4 digit large LCD display shows any combination of T1, T2, T1-T2 plus  MIN, MAX and AVG. ( 55II)  Triple 4 digit large LCD display shows  main reading plus MIN, MAX or AVG. ( 53II)  MIN, MAX, and AVG display with Real  Time Stamp ( 53II, 55II)  Auto Calibration with excellent accuracy ( 53II, 55II)  Measure K, J-Types of thermocouples  ( 53II, 55II)  Easy to use panel design ( 53II, 55II)  Data logging up to 16, 000 records ( 53II, 55II)  Optical RS-232 interface ( 53II, 55II)  Auto Power Off with selectable time  setting ( 53II, 55II)  Protective Holster with tilt stand  Bead probes included  Optional optical RS-232 cable and  Win DTM50 software ( 53II, 55II)