We are the company which produces the electrical instrument, which is only our one field for 30 years since we were established in 1979. The electrical instrument is the up-to-date product which require the high performance, high trust and high precision, and thus has the very important positions in the development of scientific technology and advanced industry. We have produced the converter, meter and critical setting meter upon the results of continuous study from the production of scale-styled meter and transformer at first, and recently reach to the development of portable power measurer and digital meter for switchboard use. The companies which produce the excellent instruments in the world have on concentrated their much attention and concern upon us, and also we do our best efforts to be progressed as Light Star Instrument which is noted in the world through the development of Up-to-Date instrument.