Due to the increasing number of overseas orders, products possibly been strenuous vibration during long distance shipment , causing the internal line of the instrument to loosen. though the problem can be solved by remote guide,  still occur  unnecessary trouble for the customer.  In order to avoid happen same problem , now, for each product , before leave the factory, will be tested by the vibration tester which can simulate the same strength shake when shipment , after it , then test the instrument in the lab again .

·  Ensure that each instruments pass the strict quality check