The Extech EMF450, manufactured by Extech, is a magnetic field tester designed to measure electro-smog and electromagnetic fields. It features precise solenoid-based magnetic field readings for accurate detection. Typical applications include checking for EMF exposure in residential and industrial environments. https://elecena.pl/product/29043617/extech-emf450-tester-3-sensor-measures-magnetic-electric-rf-fields 2025-07-02 https://elecena.pl/product/29043617/extech-emf450-tester-3-sensor-measures-magnetic-electric-rf-fields 2026-04-13