Light Weight Loop Calibrator can operate in 2 W sim and read power mode. The Loop Calibrator is enabled with potentiometer free digital setting and provides press output for zero or span or in steps of 10 % and 25%. The Loop Calibrator is a light weight and portable unit that performs with an accuracy level of +0. 05 Fs. Light Weight Loop Calibrator is provided with bold 4-½ digit backlit liquid crystal display that facilitates ease of operation.