We are specialized in designing and producing testing instruments, such as digital multimeter, graphic multimeter, handhold oscilloscope, digital clamp meter, insultation resistance tester, digial infrared thermometer, LUX meter, laser tachometer, UV light meter, etc. For 13 years, we have exported our products to over 50 countries. And our brand "JH" are well known by local markets. Almost all of our products get CE and some RoHS certificates.We are striving to Research and Design new and better products for markets needs
