Instruments & machinery sales corporation presents digital electromagnetic field testers [gauss metes]. These testers are cost-effective, handheld instruments designed for a quick, reliable and easy way to measure electromagnetic field radiation levels around power lines, home appliances and industrial devices. These testers are calibrated to measure electromagnetic field radiation at different bandwidths down to 50 hz/60 hz display 20 micro tesla and 200 milli gauss in the same tester. These electromagnetic field testers are specifically designed to determine magnitudes of electromagnetic field radiation generated by power lines, computer monitors, tv sets, video machinery and many other similar devices.