Feature: 1. Magnetic Field Electric Field Detection: EMF detector is is a portable safety field detector, can detect AC magnetic field, electric field, high frequency (RF) radiation, mainly used in the environment of life and work in the non ionizing electromagnetic electric field, magnetic field, etc.. 2. Mode and Auto Shutdown: The EMF detector measures AC magnetic field in 3 axes mode, which can be measured in any direction, AC electric field in 1 axes, high frequency or microwave in 1 axes, and auto shutdown in 15 minutes. 3. Data Hold: Our EMF meter can lock the measurement display value with one key, data hold, sound and light alarm, exceeding the alarm threshold automatically sound and light alarm. 4. Simultaneous Display: The EMF meter can do simultaneous display of measured values, peaking values and quick response trend graphs, which can detect radiation from cell phones, smart electrical devices, video cameras and signal transmission towers. 5. Widely Used: Electromagnetic radiation detector can be used for the detection of electromagnetic radiation protection equipment, computers, air conditioners, refrigerators, TVs, and other electrical equipment EMF radiation detection. Specification: Item Type: Electromagnetic Radiation Detector Material: ABS Battery: 1.5V AAA battery x 3 (Shipping without battery) Function Specification AC Magnetic Field 3 Axes Measurement Scope: 0.01-200.0uT/0.1-2000mG Measurement range: 20uT/200uT;200mG/ Resolution: 0.01/0.1uT;0.1/1mG Frequency range: 30-1000Hz AC Electric Field 1 Axes Measurement Scope: 1-2000V/m Measurement range: 2000V/m Resolution: 1V/m Frequency range: 30-1000Hz High Frequency/Microwave 1 Axes Measurement Scope: 0.001-100.0mW/m² Measurement range: 2/20/100mW/m² Resolution: 0.001/0.01/0.1mW/m² Frequency range: 50MHz-3.5GHz Sound and light alarm Sound and light (green, orange, red) alarm when the built in threshold is exceeded Automatic shutdown About 15 minutes Environment 0-40℃/40-80%RH . Package List: 1 x EMF Meter1 x Storage Bag1 x Manual