0V to 28V; 0mA to 24mA; 0.15% accuracy The Fluke 707EX is an intrinsically safe loop calibrator for use in explosion endangered areas. It is certified in accordance with the ATEX directive (Ex II 2 G Eex ia IIC T4) in Zones 1 and 2. It is best suited for flow computers, process measurements and process controllers. The Fluke 707EX is used for calibration and maintenance of 4 to 20 mA control loop. It features a large display and simple, quick-click push/rotary button for easy one-handed operation. Fluke 707EX calibrators also have simultaneous mA and % readout for quick, easy interpretation of readings. With mA accuracy of 0.015%, the Fluke 707EX is superior to other loop calibrators. Push-button operation with 25% steps provides for fast, easy linearity checks. 0 and 100% 'span check' allows for fast confirmation of zero and span.