Item No.: C99V501
.Power supply:220V 50Hz.   
.Voltage Measuring range:3~600V.  
.Current measuring range:0.005~20A.  
.Power measuring range:1~9999W.  
.PF measuring range:-1~1.  
.Resolution：±(0.4% reading+0.1% range)  
.Operating Temperature: 5~45℃.  
.Storage Temperature: -20~60℃.  
.Range select:auto-switch.