The DryCal DC-Lite offers a primary flow standard that can be used for accurate calibration of all commercially available industrial hygiene and environmental air sampling pumps. Convenient features include AC/DC operation, a large alphanumeric LCD for flow rate, flow average with number of readings included in the average push-button read and auto-read of volumetric flow rate, automatic shut-off, a parallel printer port that interfaces with most PC-compatible printers - and no messy soap film. Three models of the DC-Lite Calibrator are available for rental: Model DCL 12K (10ml/min to 12LPM), Model DCL 20K (20ml/min to 20 LPM) and Model DCL 40K (1 to 40 LPM).