"NIST TRACEABLE STANDARD FOR FLOW RATE, TEMPERATURE AND BARAMETRIC PRESSUSRE; SENSORS IN ONE UNIT; LINEAR PERFORMANCE; CONTINUOUS AND SIMULTANEOUS READOUTS; MENU-DRIVEN USER INTERFACE; AUTO-OFF; PROGRAMMABLE INTERNAL LOGGING OF AUDIT/CALIBRATION DATA WITH TIME/DATE STAMP; USER-SELECTABLE MEASUREMENT UNITS; 0.8-19 L/MIN"