Qingdao Promatch Instruments Co., Ltd. are providing the professional products and solutions on the world wide of test & measuring instruments. we are adhering to the concept of "Professional, Faithful, Cordial", to offer the professional products and the quality of services for the different needs of customers. The most of products we offered is the famous brand of the world wide, and it was imported directly by us as the exclusive dealer or distributor.   Brand & Product：  Protek （Telecommunication）:  Network Analyzer, Spectrum Analyzer, Cable & Antenna anlyzer, RF Fieild Strength Analyzer ...[More]