20 Channel Portable Thermal Array Recorder. Includes data capture and battery pack for portable operation. System log prints time, date, chart speed, and scale every 6 inches, with user annotation of up to 128 characters. A/D converter provides 12-bit resolution. A front-panel 1.44MB 3.5%22 MS-DOS compatible floppy drive permits storage of recorder setups, or transfer of data to a PC for analysis.