Measure mA signals for PLC and control system analog I/O.Measure 4 to 20mA output signals from transmitters without breaking the loop. Best in class 0.2 % accuracy. Resolution and sensitivity to 0.01mA. Hold function captures and displays changing measurements. Dual backlit display with both mA measurement and percent of 4 to 20mA span.Measurement spotlight illuminates hard-to-see wires in dark enclosures. Detachable clamp with extension cable for measurements in tight locations. Measure 10 to 50mA signals in older control systems using the 99.9 mA range. Battery saving features include automatic poweroff after 15 minutes and 2 minute automatic off for backlight and spotlight.