1.  Read operating manual carefully before using the instruments

 2.  Shall not be arbitrarily dismantle any part

 3.  When you have any problem,please inform us. 



 one year warranty(replace parts for free,no human reason) 

 12-hour on line service  

  Lifelong technical support on line or by email  

  Offer training at our factory for free(you could visit us and learn)