u high voltage ，lower current，accurate 
u leakage current、continuously and arbitrarily set test time，strong adaptation
u at the same time showing the actual measured values (time, voltage, current showing at the same time), unqualified audible and visual alarm      
u manual and remote control test 
uhigh voltage breakdown protection

u DC input can measure the capacitor withstand voltage、leakage current、high voltage silicon rectifier stack、transistor reverse current and reverse voltagea tractor serves severalpurposes 

 1、time showing 

     2012 style adopt three digital tube display，the maximum time can reach 999s；the minimum time is 0.1s。

2、time presetting    

 2012 style withstand voltage tester adopt key to preset time，but the old style adopt dial disk to preset

3、time counting mode

   2012 style adopt the positive count mode when time is set 0；If not ,adopt the countdown mode ；

   If  the old style do not open time，then time do not conduct timing；

4、high voltage indicator of output terminak

   Danger indicator light2012 style withstand voltage tester indicate the high voltage condition of high voltage output terminal. If only there is high voltage in the high terminal，Danger indicator light is on；the light is not controlled by control circuit.

5、PLC interface

   PLC interface  output signal of 2012 style withstand voltage is contact signal completely；output signal stable、easy to catch；But among output PLC signal ofwithstand voltage of the old style ,pass signal is pulse signal ,not easy to capture

Summary