Dear concerned, This is Grace from SYSTESTER Instruments Co.,Ltd. We are the leading manufacturer of testing machine with over 20 years experience. About our products: 1.Full set of imported components and own patents ensure the accuracy. 2.Touching screen and full automatic , easy to operate. 3.Rarely after-sale question and in-time service 4. Warranty for at least one year We want to have our partner in your area. Any interest? Just call me . Grace Email:trade.en@systester.cn Cell/Whatsapp:+86 17864187232 Show More