1 .Easy to operate and maintain 2. High quality and reasonable price 3. Good after sale services 4. Accurate measurement FeatureThis product can adjust all kind of in-line pump which was equipped with the RED4 Electronic speed control device and made by Japan Zexel Company....

1. Small size for easy mobility 2. Easy operation and maintain 3. High quality,reasonable price 4.Good after sale service Features 1.Adpopted special integrated circuit The technology and figure(data) of it are as well as the original one.2.simple, intuitive, quick...