What kind of radiation does a monitor emit?
A computer monitor is powered by mains (line) current at relatively low frequencies and uses that power to generate higher frequency fields due to the electron gun and the sweep circuitry that produces the picture. So, generally, there are electromagnetic fields at the line current frequency , usually 50-60 Hz (extra low or ELF range), and also at the sweep frequencies and integer multiples up to about 400 – 500 Khz or so (very low or VLF range). The radiation consists of an electric field component (E-field) and a magnetic field component (H-field).
