This unique portable thermometer has the ability to automatically record and store up to 16,000 data points on each of the 4 channels in the field which can later be downloaded to your computer. Displays data from 4 thermocouple probes simultaneously on a large back-lit LCD. Communicates with a computer via the bi-directional RS232 port and optional cable, and graphic software. Auto ranging with auto power off, min/max, hold and relative functions. High full scale accuracy of ±0.5% rdg. + 1°C / 2°F. Easily calibrates to ice point, or any other standard. Comes ready to use in a protective foam lined case, with 2 beaded wire probes (Ambient Type K probe 800077), RS232 computer cable (800001), software (840004), and a 9V battery. CE approved. N.I.S.T. traceable certificate of compliance available.