This device features a built-in electromagnetic radiation sensor, processed by a microcontroller chip. Test and understand the current state of electromagnetic radiation in indoor and outdoor environments. LCD digital display shows radiation values. Take appropriate measures or effectively avoid electromagnetic radiation based on test results, adhering to electromagnetic wave hygiene standards. The electromagnetic radiation tester successfully tests the compatibility between electric field radiation and magnetic field radiation, achieving optimal test results. Measures electric field: Range: 1V/m-1999V/m Alarm Threshold: >40V/m Resolution: 1V/m Measures magnetic field: Range: 0.01 micro-Tesla - 99.99 micro-Tesla Alarm Threshold: >0.4 micro-Tesla Resolution: 0.01 micro-Tesla Measures temperature: Range: -10C~70C Reading Display: 3-1/2 digit LCD display Test Bandwidth: 5Hz - 3500MHz Sampling Time: Approximately 0.4 seconds Operating Temperature: 0°C~50°C Operating Humidity: Relative humidity below 80% Working Voltage: DC4.5V Power: AAA1.5V*3PC Size: 152*52*26.5mm Weight: 125g Package Includes: 1* Electromagnetic Radiation Detector 1 * Manual