GQ EMF-390 Multi-function Digital EMF Meter

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A Portable EMF Meter to Help Radio Amateurs Comply

The EMF-390 multi-function digital EMF meter is designed to be a portable device. It can be used for industrial and commercial maintenance, research, evaluation, simulation and other analytical or scientific applications in areas such as industrial plants, public utilities, universities, laboratories, and electronic repair shops. The device integrated testing features include three axis Electromagnetic Fields, Electric Field, Radio Frequency and Radio Spectrum Power Analyzer.

The meter can identify the common source from EMF measured, such as Power Line, Wi-Fi etc. It also comes with a built-in audible and visual alarm. It can be used for EMF, EF, RF and 5G network detection, and for monitoring both indoor and outdoor (protected), as well as in other similar environments. It can continually monitor the radiation. When connecting the device to a PC, PC software can download the radiation data to the computer and the user can analyse those data later.

The device also installed a high contrast black/white LCD module and one front LED indicator. The built-in electronic gyroscope allows the user to read data from upside down to view it easily. The EMF-390 has onboard flash memory for data logging and saving. The data can be logged every second and can be downloaded into .csv format file with free software EMF-PRO. GQ RF Browser is specifically designed for the radiation monitoring of amateur radio equipment, smartphones, phone towers, smart meters, and Wi-Fi connections.

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A safety suggestion indicator provides a simple and easy way to understand overall radiation risk. The device is equipped with a USB port, utilized for communication and external power supply/charging of the internal rechargeable Li-Ion 3.6V/3.7V battery. The GQ EMF-390 internal rechargeable battery can be charged with a standard USB port, a USB charger or viaa computer USB port. Using external power, continuous data monitoring is possible. Using either power adapter you will not have to worry about the batteries charge condition or any data loss. The EMF-390 also has a real-time clock on board for time-related data measurement. The meter has multiple sensors to ensure maximum scale/range measurement and the highest accuracy. Thanks to Moonraker for the loan of the review unit.

[The device is reviewed by Don Field in Practical Wireless, August 2021: 10-13 – Ed.].

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