Current measurement with 0.02% accuracy and 0.001 mA resolution; Pressure switch test function; Min-Max Hold functions; Simple, push-button user interface; Rugged and reliable, ideal for field use --- Fluke 718 pressure calibrator family provides a total pressure calibration solution for transmitters, gauges and switches. This compact pressure calibration solution is about a third of the size of comparable instruments and weighs just one kilogram (two pounds). The unique easy to clean pump helps protect the pump from damage and provides the ability to service the pump without disassembly, even in the field. The Fluke 718Ex Intrinsically Safe Pressure Calibrator is a powerful intrinsically safe, self contained pressure calibrator for usage in Explosion endangered areas.