... chart LCD display, CCFL backlight, clear pict 16 channel Colored paperless recorderBrief introduction mid-long chart color screen ... SignalCan input various standard signals: standard current, standard voltage, frequency, mv, thermocouple, thermistorSignal full-range accuracy ±0.5% ... project item and project unit.Project quantities display number reaches four and half bits, display range: -1999~19999, ...