Handheld instrument for calibration, maintenance and repairs with high accuracy. Large wheel for easy one-hand manoeuvring and setting of parameters. Measures and powers a 4–20 mA current loop. Displays mA and % at the same time. Choice of fast or slow ramping/step-by-step operation provides even out-signals at changes and loop-function tests. Span Check for fast confirmation of set range. Integral voltage source of 24 V. 3 year warranty.