device captures signals it should not [ EMF meter ]

find this channel on youtube copy & paste this link: https://youtu.be/tlX6D7xVDGI

the sound in editing was increased.. this made the sound a little fuzzy .. the best parts of this short video are at the start and and the ending of this video

this is about a 300$ EMF meter, the only sound these devices make varies from loud beeps to quieter beeps. these devices should not be picking up radio signals, as seen here.