- EXTECH Electronics Co,. Ltd.
Taiwan, China. A manufacturer of Safety Testers, AC Power Sources, Automatic testing systems and Battery chargers. - Hangzhou Jingda Electronic Co., Ltd
China. Manufacturer of power meters calibration devices for power meters. - Shanghai Glentest Electronics Co., Ltd.
China. Manufacturer and exporter of electrical and electronic test instruments and other testers such infrared thermometer, tachometer, etc. - ShenZhen Everbest Machinery Industry CO.,Ltd
China. Digital multimeter, thermometer, clamp-on multimeter and electric testers. - Standard Electric Works co., Ltd.
Taiwan, China. Manufacture of insulation tester, earth resistance tester, earth leakage tester, loop impedance/PSC tester, ELCB tester, clamp meter, multitester, phase sequence indicator, panel meter, audio impedance tester.
