This unique portable thermometer has the ability to automatically record and store up to 16,000 data points in the field which can later be downloaded to your computer. Displays data from 4 thermocouple probes simultaneously on a large backlit 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. + 1ºC / 2ºF. Easily calibrates to ice point, or any other standard. This unit does not have a relative function. Comes ready to use in a protective foam lined case, with 2 beaded wire probes, RS232 computer cable (800001), software (840004), and a 9V battery. CE approved.