1. Ultra-small size, light weight    
2. Simple operation, the keyboard lock feature    
3. Provide 5 groups of memory set, each group can take four kind of work patterns    
4. LCD display, test status, the results be clear at a glance  
5. Voltage according to the time gradient rise, real-time analysis, looking for breakdown point current upper and lower limits set, intelligent alarm  
6. Arc detection function (1-9 levels)    
7. Remote PLC control interface