The EMF tester is a cost effective h&-held instrument designed to measure electromagnetic field radiation Can be used at different bandwidths down to 50-60 Hz Use around home appliances industrial devices & power lines Three wide measuring ranges of 20 micro Tesla 200 micro Tesla & 2000 micro Tesla Separate probe easy operation The EMF tester is designed & calibrated to provide the user with a quick reliable & easy way to measure electromagnetic field radiation levels. It can determine the magnitude of electromagnetic field radiation generated by power lines computers monitor TV sets video machinery & many other small devices. Some people believe that electromagnetic fields are generated by supernatural phenomena