Features Digital display panel mounted controls & indicators with easy to read legend. Monitoring high voltage side voltage,low voltage side current and indicator of zero, power, working start,timing. Over-current protection,zero-starting protection,sound and light alarm. Continuously variable output from zero to full voltage. Adjustable over current protection,with trip levels variable from 10 to 110%. With new type time relay,time rang is more wider (1S ~ 99H). Using the latest current relay, more accurate and reliable. Light weight,small size,easy to move.