This is a powerful portable EMF detector with multiple functions. It can detect three types of non-ionizing radiation electric field (EF) 1-1999V/m, magnetic field (MF) 0.1-999.9mG or 0.01-99.99uT, and radio frequency (RF) 0.1-999.9mW/ or 0.01-99.99uW/c. The instrument has a built-in 3-axis magnetic field radiation receiving antenna, which can detect XY/Z three-axis magnetic field radiation (MF), identify the direction of magnetic field radiation, and display it on the screen. Three types of radio frequency radiation (RF) can be identified: WIFI/PHONE (WIFI radiation), MICROWAVE (microwave radiation), MIXED (mixed electromagnetic wave radiation). In addition to the numerical display, the three-color backlight and bar graph provide additional visual assessment of radiation intensity. Built-in high-capacity lithium battery, Type-c charging port, USB cycle charging. Portable design: The electromagnetic radiation detector adopts a portable design, which is compact, , easy to carry and operate, and suitable for on-site testing and mobile measurement. EF measurement range: 1-1999V/m MF measurement range: 0.1-999.9mG or 0.01-99.99T RF measurement range: 0.1-999.9mW/ or 0.01-99.99uW/c EF (electric field) sensitivity: 1V/m MF (magnetic field) sensitivity: 0.1mG or 0.01T RF (radio frequency) sensitivity: 0.1mW/ or 0.01uW/c Measurement accuracy: 5% Measurement bandwidth: 40Hz-10GHz Auto shutdown: 15 minutes by default, can be turned off Working: temperature: -10-+60; Working humidity: Less than 80%RH Battery: built-in 320mAh rechargeable lithium battery Colour:Black & Green Material:ABS Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Electromagnetic detector 1 * USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.