☣One-Key Lock Radiation: Data retention, one-key lock to max/average for easy viewing. It can measure magnetic field radiation and electric field radiation, effectively identify signal sources, and locate signal locations. Automatic shutdown after 5 minutes of inactivity. ☣Measure Accurately: Our Radiation Detectors measure radiation with high sensitivity and precision. The built-in magnetic radiation sensor displays the numerical value on the digital LCD screen after the chip is processed. LCD