We have been a leading manufacturer and exporter of automotive circuit testers, household electrical voltage testers, and stud/metal/voltage, distance and dampness detectors for DIYer since1983.All of our precision instruments enjoy a reputation from buyers worldwide and have GS, CE, RoHS ,UL and c UL approvals.With an outstanding in-house R&D team and strict quality control procedures together with extensive industry connections ,we promise to do our utmost to match your high expectations . ... {read more}