a quality electrical measuring instrument manufacturer from China

Category of DUOYI products

Multi Function Tester tester with earth resistance measurement, insulation resistance measurement, phase rotation check, voltage measurement	Earth Resistance Tester / Earth meter / Ground meter earth resistance testers, earth meter, Clamp-on Ground Resistance tester, ground resistance clamp meter
Gas Tester / Gas Detector / Gas Monitor Gas detectors, Gas meters, Gas Monitors, Gas testers manufacturered by DUOYI.	Insulation Resistance Tester / Megohmmeter Insulation resistance tester, Megohmmeter.
Socket Tester RCD socket tester RCD	Clamp leaker clamp leaker, clamp leakage current tester
Phase Detector non contact phase detector	Transistor Tester Transistor tester for crystal diodes, audions, capacitors, silicon controlled rectifiers(SCR), field effect transistors(FET) and much more.
Automotive Tester automotive tester, automotive multimeter, tools for automobile repair and diagnosis	RCD(ELCB) Tester Residual Current Device (RCD / ELCB) Tester
LCR Meter LCR meters, resistance capacitance inductance	Multimeter Auto range multimeter, digital multimeter, analog multimeter
DC Bridge DC bridges, DC wheatstone bridges, DC resistor bridge, DC double bridge, DC resistance bridge, DC resistor box	Accessories test probe, test lead, testing and measuring accessories.

DUOYI Electronics Co., Ltd.