l Measuring:Active power of positive and negative,function of frozen data.
l Clock:Clock error within 0.5s/day,automatically switch calendar,timing and leap year..
l Display:Wide temperature displaying,4digits in 3 lines,functions of scroll and press displaying.If no button pressed within 8s,automatically change to scroll mode,which 4s is the period.
l Data reading and power management:Realize the intelligent management by automatically data reading through communication of RS485.