日本共立电气株式会社（KYORITSU/克列茨）自1940年成立以来，始终秉承“高品质和高质量是我们的一贯传统”的宗旨，研制开发的电力电工测试仪器KYORITSU销售遍布世界各地，在电力电工行业处于世界领先地位。

Kyoritsu公司在日本，泰国，英国等地设立了工厂和研发中心，并在全球100多个国家设立了销售服务机构，在国际上享有极高的声誉。多年来，Kyoritsu公司为各工业领域提供了具有精湛工艺的测试、电工安全测试现场维护仪器：电力系统中高压绝缘电阻测试仪和钳形电流表销售保持业界领先，接地电阻测试仪是气象系统首选；电能质量分析仪更是适用于企事业单位节能中不可或缺的设备。此外，KYORITSU万用表、多功能测试仪、漏电开关测试仪、漏电记录仪、相序表等其他产品，可广泛应用于电力、电信、气象、冶金、机电、铁路、石油/化工、建筑、电气、汽车等行业。

2006年以来，Kyoritsu公司针对中国市场陆续推出了钳形接地电阻测试仪4200，小型地网测试仪4106，高压绝缘电阻测试仪3121A/3122A/3123A系列，大电流数字高压绝缘电阻测试仪3128，电能质量分析仪6300、6310等。

Kyoritsu offers Multimeters, Voltage Testers, Clamp Meters, Insulation/ Continuity Testers,Earth Testers,LOOP/PFC/PSC Testers, RCD Testers,Power Quality Analyzer, Power Meters, Loggers, Clamp Sensors,Phase Indicators, Illuminometers,Recorders, etc.

Since its founding in 1940, Kyoritsu has made customer satisfaction and providing high quality products and services our top priorities. Our emphasis on customer support has helped us to build strong and lasting customer and distributor relationships that continue today. 

State of the art electrical measurement technology products are the backbone of our company's business. Our wide line of testers has contributed to technological developments and industrial infrastructures worldwide. 

In the future companies will be faced with significant changes and will need to be adaptable to the requirements brought about by new technologies. Also, we recognize the importance of being responsible with regard to global-environmental issues that affect all of us. It is our sincere hope, to not only sustain our business development but also look to the future for next generation. For that reason Kyoritsu pledges to embrace technologies and manufacturing processes that will contribute to environmental solutions.