Q: How about the warranty? A: 12 months. Our quality is quite steady, please have a rest assured. Q: Do you accept OEM? A: Yes, OEM is welcome; Q: How about the shipping? A: by sea, by air or by Express couriers etc. Q:. What about the payment? A: T/T(Telegraphic Transfer),western union, paypal will be acceptable. Q: How to choose the appropriate test instrument? A:Please advise what data you need to get through testing, then our team will suggest you the best solutions asap. Q:How about the service for installation and training? A: The operating instructions or video instructions will be provided. If you are near our local agent, the spot service can be arranged.Usually we will send our engineer for overseas spot service to finish installation and operation training, that we will take extra cost like air-tickets and accommodation.