εMax/Average Value Lock: The handheld EMF Radiation Tester can lock and record radiation max/average data with one key. Measure magnetic field radiation and electric field radiation clearly and accurately. Effectively identify the signal source to locate. Auto shutdown after 5 minutes of inactivity. εEasy To Read: LCD backlight allows you to have clear vision. The built-in magnetic radiation sensor of the radiation detector displays the radiation value on the LCD screen after the chip is process
