Feature:1. Comprehensive Detection: Measure RF field strength, electric field strength, magnetic field strength, temperature, and humidity all at once, providing a thorough electromagnetic radiation assessment.2. Intuitive User Interface: Features sound reminds, screen, data lock function, radiation level evaluation, and battery indicator. Dual style display interface with trend graphs for 5 parameters allows for easy data visualization.3. Long Battery Life: Radiation meter is equipped with a built in 2000mAh large battery for extended usage, supporting convenient Type C charging.4. Customizable Settings and Reminds: Users can customize sensor calibration, backlit brightness, device shutdown time, screen off time, sound, time, and language. Set thresholds to change font color to red when radiation levels exceed preset values, reminding to higher levels.5. Versatile Applications: Use the electromagnetic field radiation detector for various environments including industrial facilities, homes, offices, sign towers, and household appliances like microwaves, ensuring a safer and healthier living and working environment.Specification:Item Type: Electromagnetic Field Radiation Detector Material: ABSBattery: Rechargeable Li Battery Approx. 2000mAh x1 (shipped with built in battery)Display Screen Size: 2.8 inchCharging Method: 5V Type CParameter Display Range:Electric Field Strength: 0-999.9v or mMagnetic Field Strength: 0-999.99TRF Electromagnetic Field Density: 0-999.99mw or Temperature: 0-70Humidity: 0-99 percent RHFrequency Range:Electric Field Strength: 20Hz-100MHzMagnetic Field Strength: 20Hz-1MHzRF Power Density: 50MHz-5GHzDetection Accuracy:Electric Field Strength: 0.1v or mMagnetic Field Strength: 0.01TRF Power Density: 0.01mw or Temperature: 1Humidity: 1 percent RHProduct Size: Approx. 125 x 67 x 35mm or 4.92 x 2.64 x 1.38in.Package List:1 x Electromagnetic Radiation Detector1 x User Manual1 x Data Cable