The GQ EMF-390 advanced multi-function digital EMF ELF meter is a portable device designed by GQ Electronics, Seattle, USA. It measures electromagnetic fields, ELF, RF, and spectrum power with high sensitivity sensors, suitable for detecting power lines, WiFi, cell phones, and microwave sources. Its integrated features include three-axis electromagnetic, electric, RF spectrum analysis, and real-time data logging, which can be downloaded via PC software for detailed analysis. The device features a high contrast LCD, built-in alarm, and RF browser visualization, making it ideal for scientific, safety, and environmental monitoring in India. Its USB connectivity allows continuous monitoring and data review, supporting indoor and outdoor applications, with all customs duties included for hassle-free import.