"0.3 TO 25 UM; LONG LIFE DIODE; SAMPLING MODES INCLUDE MANUAL, AUTO, BEEP - CUMULATIVE/DIFFERENCIAL, COUNT, OR CONCENTRATION; 1 SEC TO 99 HOUR SAMPLE TIME; 5.7 INCH VGA TOUCH SCREEN; BUILT-IN THERMAL PRINTER; DATA TRANSFER VIA USB STORAGE DEVICE; 41 TO 95 F OPERATING TEMP"