GDM-8342 & GDM-8341 Dual Measurement Multimeter
  • 50,000 counts, VFD display
  • Dual measurement/Dual display
  • Selectable measurement speeds, the maximum: 40 Readings/s for DCV
  • The basic precision of DC voltage: 0.02%
  • Auto/manual Ranging
  • True RMS (AC,AC+DC) measurements
  • 11 different measurement functions
  • Max./Min., REL, MX+B, 1/X, Ref%, Compare, Hold, dB, dBm
  • Standard USB device interface to connect with a computer
  • Temperature measurement function (GDM-8342 only)
  • USB storage for Data collection (GDM-8342 only)
  • Optional GPIB (factory install for GDM-8342)

Unrestrained Storage and Connection

   -- Data storage no longer be bound by transmission wire

GW INSTEK rolls out the new generation Dual Measurement Multimeter -- the GDM-834x series, which has two models -GDM-8341 and GDM 8342. Its exceptional features include 50,000 counts, VFD dual-display, 0.02% basic DC voltage accuracy and a USB protocol connector to provide users with measurement precision, lucid data observation, and the convenience to connect with the personal computer.

The GDM-834x series not only supports the fundamental measurement items provided by general multimeters, but also equips with capacitance and temperature measurement functions. Furthermore, the GDM-834x series also provides many auxiliary functions to meet the measurement requirements for manufacturing process tests, educational experiments and testing facilities.

With respect to storing and retrieving data, the GDM-834x series has two methods to offer: first, the USB flash drive storage function --- operating alone without connecting with a computer; second, USB interface (virtual COM port) and optional GPIB interface (must be installed in factory) for automatic measurement system users to conveniently save and retrieve data.

  • Convenient USB flash drive storage function
  • Selectable measurement speeds
  • Various measurement items and functionalities
  • Dual measurement/dual display
  • Command compatibility & Free software-remote control and data retrieving

Included Accessories

Safety Instruction Sheet x1, Power cord x1, Test lead GTL-207A x1,
CD x 1 (including complete user manual, USB driver and PC software)


Note : Optional GPIB interface is only for GDM-8342 and it must be installed in factory.


Optional Accessories
GTL-205A   Temperature probe adaptor with thermocouple (K-type), Approx. 1000mm
GTL-246   USB Cable, A-B type, Approx. 1200mm
GTL-248   GPIB Cable, Approx. 2000mm
GRA-422   Rack Mount Kit (19" 2U)

GDM-TL1   Test Lead Set for All DMM
GSC-014   Soft Carrying Case for DMM Accessory

GDM-8342 with GPIB 50,000 Counts Digit Dual Measurement Multimeter with GPIB interface
GDM-8342 with GPIB 50,000 Counts Digit Dual Measurement Multimeter with GPIB interface$780 Where to buy
GDM-8342 50,000 Counts Digit Dual Measurement Multimeter
GDM-8342 50,000 Counts Digit Dual Measurement Multimeter$675 Where to buy
GDM-8341 50,000 Counts Digit Dual Measurement Multimeter
GDM-8341 50,000 Counts Digit Dual Measurement Multimeter$508 Where to buy
Assembly Manual
The Rack Adapter assembly manual of GRA-422
Assembly Manual version01_20210817.,EN 【Member Only】 385 kB DOWNLOAD
3D Model
3D Model version., 【Member Only】 2.69 MB DOWNLOAD
2D Drawing
2D Drawing version., 【Member Only】 485 kB DOWNLOAD
GDM-834x Series Newest Firmware version & procedure.
Firmware versionV1.06., 【Member Only】 679 kB DOWNLOAD
USB Driver
GDM-834x USB Driver. (for Win XP)
USB Driver version., 【Member Only】 3.69 MB DOWNLOAD
PC Software Guide
The Software manual of GDM-8351/GDM-834x Series.
PC Software Guide version20211230.,EN 【Member Only】 845 KB DOWNLOAD
GDM-834X Series Brochure.
Brochure version202101.,EN 1.98 MB DOWNLOAD
GDM-834X Series Product Information.
Datasheet version202101.,EN 349 kB DOWNLOAD
User Manual
GDM-8300 User Manual (pdf)
User Manual versionD20211020.,EN 【Member Only】 2.64 MB DOWNLOAD
LabVIEW Driver
GDM-834x LabVIEW Driver (for LabVIEW 2011 or later)
LabVIEW Driver version.,EN 【Member Only】 615.9 KB DOWNLOAD
USB Driver
GDM-834X Series USB Driver. (for Win 10)
USB Driver version.,EN 【Member Only】 3.71 MB DOWNLOAD
PC Software
EXCEL ADDINS of GDM-8351 / GDM-834x Series for RS232/USB interface
PC Software version1.,EN 【Member Only】 6.5 MB DOWNLOAD