Product information "Certificate of Calibration KAL-NFA400/1000"
For the frequencies from 5 Hz to 400 kHz with detailed calibration protocol. Why only up to 400 kHz? Just like the accredited calibration laboratory which does the reference calibrations of the NFA1000 for us, we reach physical limits when generating stable field strengths for the frequency ranges above 400 kHz. This is not the case for the calibration of the meter during production. A calibraton certificate required after the purchase of the meter can only be issued after a qualitative functional test of the meter and is subject to an additional fee depending on the age of the meter (EUR 67,50 up to an age of 5 years, EUR 135,00 for meters elder than 5 years).