The GDM-300/400 series digital electric meter is a portable, high-precision, and battery powered handheld meter designed to meet the daily needs of general and maintenance service engineers.

In addition to basic measurement functions, the GDM-300/400 series also has multiple functional features, including power-saving automatic shutdown function, clear LCD display, rotary gear switch, simple and easy to operate button design, etc. Such a lightweight, convenient, and economical tool is definitely an indispensable helper for you in your work.