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: ABS Battery: Rechargeable Li Battery Approx. 2000mAh x1 (shipped with built in battery) Display Screen Size: 2.8 inch Charging Method: 5V Type C Parameter Display Range: Electric Field Strength: 0-999.9v/m Magnetic Field Strength: 0-999.99μT RF Electromagnetic Field Density: 0-999.99mw/㎡ Temperature: 0-70℃ Humidity: 0-99%RH Frequency Range: Electric Field Strength: 20Hz-100MHz Magnetic Field Strength: 20Hz-1MHz RF Power Density: 50MHz-5GHz Detection Accuracy: Electric Field Strength: 0.1v/m Magnetic Field Strength: 0.01μT RF Power Density: 0.01mw/㎡ Temperature: 1℃ Humidity: 1%RH Product Size: Approx. 125 x 67 x 35mm / 4.92 x 2.64 x 1.38in. Package List: 1 x Electromagnetic Radiation Detector 1 x User Manual 1 x Data Cable