Potomac's third-generation field strength meter and the successor to the FIM-41. Measures 22 µV/m to 50 V/m from 520 kHz to 5.1 MHz with digitally synthesized tuning in 1 kHz steps.
Built-in GPS logs location, distance and field strength with each reading, and a spectrum display handles harmonic and occupancy measurements in the same instrument. Removable calibrated loop antenna, internal calibration source, onboard data storage with PC download, and a rechargeable NiMH battery.