Product Description body { font-family: Arial, sans-serif; line-height: 1.6; color: #333; } h2 { color: #007BFF; } p { margin-bottom: 1em; } ul { margin-bottom: 1em; } Features Versatility at its Best: Experience a three-in-one device that goes beyond just an electromagnetic radiation tester. It simultaneously detects electric fields (V/m), magnetic fields (μT/mG), and even temperature (°C/°F), providing comprehensive information at your fingertips. Precision You Can Trust: The GN902 model boasts unmatched precision, detecting as low as 0.01μT in magnetic fields and 1V/m in electric fields. Stay informed of even the slightest radiation changes in your surroundings. Safety Alerts: With built-in alarms, you'll be alerted once levels exceed 40V/m for electric fields and 0.4μT for magnetic fields. This ensures you receive timely warnings to take necessary precautions. Convenient Display and Usage: The LCD backlit screen ensures clear readings, even in low light. With data retention and low battery prompts, you'll always be prepared and informed. Wide Application: Suitable for use at home, in the office, outdoors, or in industrial settings. It's indispensable in today's tech-heavy environment where devices like phones, computers, and TVs emit radiation. Validate the effectiveness of radiation protection gear with ease. Specifications Model: GN902 Magnetic Field Unit: μT (Precision: 0.01μT; Range: 0.01μT-99.99μT) Electric Field Unit: V/m (Precision: 1V/m; Range: 1V/m-1999V/m) Alarm Threshold: Electric Field - 40V/m; Magnetic Field - 0.4μT Power Supply: 1.5V AAA battery x2 Net Weight: 53g Working Voltage: 3V Test Bandwidth: 5Hz-3500MHz Operating Conditions: Temperature: 0℃~50℃; Humidity: ≤80%RH Package Included 1 x ANENG Electromagnetic Radiation Tester (NO BATTERY) 1 x Wrench 1 x User Manual