HG series multi-function standard source and calibrator
MGY/DO30 Series Calibrator/Trimeter Calibrator
Three-phase/single-phase electric energy meter calibration device
Insulation resistance meter (megger) calibration device
High voltage/ground resistor (device/box)
AC and DC high current standard source/welding machine calibrator
Clamp ammeter calibration device
GZC series petrochemical measurement and control instruments
HGZW series dyeing, weaving and weft trimming machine
other products
DO30 series three-meter/multimeter calibrator
HG6503 multi-function calibrator / MGY6502B multi-function calibrator
HG6501 multifunctional standard source
HG5520 multifunctional standard source
HG7502 multifunctional precision calibrator
HG2672 type withstand voltage tester
HG2000 AC and DC clamp ammeter calibration device
HG1000A type current source
HG5550 multifunctional standard source
HG-5000 precision power supply
HG-2kA through-core precision AC and DC ammeter
HG4136 low distortion measuring instrument
HG-3X100A portable three-phase energy meter calibration device
