SAT-11A/B Single Clamp Earth Tester is widely used in the operation of earth resistance testing for the equipments of the fields of power, telecommunication, weather, as well as the other electrical equipments with the function of easy operation, high-accuracy and good adaptation of testing environment.

SAT-12B Double Clamps Earth Tester is widely used in the fields of resistance testing for earth resistance of various equipments and buildings. It also can test the soil resistively and leakage current of earth systems under different conditions.

SAT-13X series Power Quality Analyzer is the special portable product for monitoring and analyzing electric grid running quality, which could provide harmonic analysis and power quality analysis of electric running, and simultaneously could operate whole course monitoring for large-scale electric equipment during start-up or stopping process. SAT-13X series Power Quality Analyzer is equipped with large-capacity memory for long-term data collection and monitor of electric grid, and simultaneously equipped with PC application software, which could upload the data to computer for all kinds of analyses.

SAT-21A Digital Insulation Tester is portable hand-held tester with battery powered, which is used for testing the security of power supply instrument. It is with simple and clear operation. It adopts standard test wire, and could carry out test quickly and store test result.