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New generation handheld DMM, the GDM-500 series; In your palm, powerful and beyond



GW Instek, a professional T&M manufacturer, rolled out the new generation handheld DMM-the GDM-500 series on June 10, 2022. The series features simplicity, easy-to-use, high accuracy, and durability. Other than being a powerful portable instrument for electrical and electronic engineers in their route operations, the series can also become a simple and basic T&M instrument for households. With one GDM-500 in hand, you will experience its infinite power in T&M.

Compared with the previous generation GDM300/400 series, the GDM-500 series not only inherits the power-saving automatic power-off function of the GDM300/400 series, rotary switch for various measurement functions and the simple and easy-to-operate key design. It also fully incorporates the NCV (Non-Contact Voltage) function, which is convenient for engineers to read voltage data quickly by utilizing the non-contact detection function when measuring outdoors.

While facing the measurement situation where the voltage/current of the DUT is unknown, engineers are most concerned that the voltage/current of the DUT will exceed the measurement capability of the DMM, causing direct damage to the DMM. Therefore, the GDM-500 series is equipped with audible/visual alarms. Once the voltage/current exceeds the measurement range of the DMM, an alarm will sound immediately to avoid instrument damage caused by misuse by engineers.

The GDM-500 series has four models, including GDM-541, GDM-533, GDM-532, GDM-531. GDM-541/533/532 have the true RMS function, which is not affected by signal to make the measurement value more accurate; GDM-541/533 has the Analog Bar function and USB interface. The Analog Bar function can simulate the swing movement of the pointer, making the measured value clearer and easier to identify, and the USB interface design makes it easier for engineers to connect with the computer to reduce work time. In addition, GDM-541 has incorporated AC+DC voltage measurement function, which can restore the authentic appearance of the signal.

The basic functions of the GDM-500 series are compatible to desktop DMMs, including: fuse-protected current input, auto ranging, and duty cycle. Engineers are no longer restricted by the stationary measurement of desktop DMMs, a portable handheld DMM can complete high-precision measurement requirements on the move.

The GDM-500 series inherits many advantages of the GDM300/400 series, and strengthens the measurement functions that meet the requirements of human operations. It is expected to bring maintenance engineers lighter, more economical and more accurate T&M experience to effectively reduce the measurement time of maintenance engineers.

GDM-541 - 22000-Count Hand-Held DMM with True RMS Measurement and USB Interface

22000 Count, Auto Ranging, True RMS, Analog Bar, Display backlight, AC + DC Voltage and much more.

by quote only (USD)

22000 Count, Auto Ranging, True RMS, Analog Bar, Display backlight, AC + DC Voltage and mu...

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GDM-533 - 6000-Count Hand-Held DMM with True RMS Measurement and USB Interface

22000 Count, Auto Ranging, True RMS, Analog Bar, Display backlight, AC + DC Voltage and much more.

by quote only (USD)

22000 Count, Auto Ranging, True RMS, Analog Bar, Display backlight, AC + DC Voltage and mu...

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GDM-532 - 9999-Count Hand-Held DMM with True RMS Measurement

9999 Count, Auto Ranging, True RMS, Display backlight, and much more.

by quote only (USD)

9999 Count, Auto Ranging, True RMS, Display backlight, and much more....

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GDM-531 - 6000-Count Hand-Held DMM

6000 Count, NVC Function, Audible / Visual Alarm, Display backlight, and much more.

by quote only (USD)

6000 Count, NVC Function, Audible / Visual Alarm, Display backlight, and much more....

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Selection Guide

Model GDM-541 GDM-533 GDM-532 GDM-531
Max. Display 22000 6000 9999 6000
Auto Ranging x
Analog Bar x x
True RMS x
Display Backlight
Auto Power Off
Curr. Range Protection PTS & Fuse PTS & Fuse Fuse Fuse
DC Voltage 1000V 1000V 999.9V 600V
AC Voltage 1000V 1000V 999.9V 600V
DC Current 20A 20A 9.99A 10A
AC Current 20A 20A 9.99A  
Resistance 220MΩ 60MΩ 99.99MΩ 60MΩ
Capacitance 220mF 60mF 9.999mF 9.999mF
Frequency 220MHz 10MHz 9.9MHz  
Diode
Continuity
Temperature    
Duty Cycle (%)  
Transistor (hFE)      
NCV Function
REL  
Data Hold
Peak Hold    
MAX/MIN    
LoZ ACV      
LPF ACV      
Audible / Visual Alarm
AC+DC Measurement      
Interface USB USB    
Safety Rating CAT III 1000V
CAT IV 600V
CAT III 1000V
CAT IV 600V
CAT II 1000V
CAT III 600V
CAT III 600V