Specification Brand : FUZHUI BulletPoint1 : Portable Design : The EMF Detector comes in a compact and lightweight design, making it easy to carry and use anywhere. This ensures convenience and portability for on-the-go measurements. BulletPoint2 : High-Sensitivity Alarm System : With a high-sensitivity alarm system, the EMF Detector provides safety alerts through sound and light indicators. The 0.4s sampling time ensures quick response, keeping you informed of any potential electromagnetic radiation hazards. BulletPoint3 : Versatile Applications : This Electromagnetic Radiation Tester is for use in various environments, including homes, offices, outdoors, and industrial sites. It can be used to test devices like mobile phones, computers, TVs, and refrigerators, ensuring your safety from electromagnetic radiation. BulletPoint4 : User-Friendly Digital Display : The Digital Display of the EMF Detector offers simple and clear readings, along with a data locking function for easy note-taking. This simplifies the operation and makes it user-friendly, even for non-technical users. BulletPoint5 : Comprehensive Testing Capabilities : The EMF Detector can test electric fields, fields, and temperature, offering a wide test range and high accuracy. This comprehensive testing capability ensures that you get a complete picture of the electromagnetic environment around you. ItemName : EMF Detector and Electromagnetic Radiation Tester with Digital Display, Featuring Field Meter, for Home and Industrial Safety, includes High Sensitivity Alarm, Compact ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 17 centimeters ItemPackageDimensions_Width : 6 centimeters ItemTypeKeyword : emf-meters Manufacturer : FUZHUI ModelName : FUZHUI21yw7veb8o ModelNumber : FUZHUI21yw7veb8o PartNumber : FUZHUI21yw7veb8o ProductDescription : Item Type: EMF Detector Battery: 3 x AAA 800mAh alkaline dry battery, shipped with supporting battery. Electric Field Range: 1V/m~1999V/m, unit: V/m, accuracy: 1V/m, alarm threshold: 40V/m. Magnetic Field Range: 0.01 μT~99.99 μT, unit: μT, accuracy: 0.01 μT, alarm threshold: 0.4 μT. Temperature Range: -10℃ ~ 70℃, unit: ℃/℉, accuracy: 0.1 ℃/℉. Reading Display: 3-1/2 bit LCD Test Bandwidth: 5MHz - 3500MHz. Sampling Time: About 0.4s Test Mode: Dual mode simultaneous test. Operating Temperature: 0 ℃~50℃ Operating Humidity: 80%