Features [Quality Materials]: The radiation detector is made of high quality materials, durable, long service life. [Clear reading]: The EMF is displayed in large liquid crystal data, and the reading is clear and accurate. It is suitable for a variety of environments. [Automatic alarm]: The electromagnetic detector has an acoustic alarm function. When the test result exceeds the rity value, the instrument will automatically alarm, support data lock, and the radiation value is locked. [Comfortable grip]: The radiation tester is used to use anti-slip design, holding comfort, convenient to use. [Application]: Digital radiation detectors can be used for electric fields and magnetic field measurements, beautiful practical. Feature: 1. The radioscler detector is made of high quality materials, durable, long service life. 2. EMF is displayed in large liquid crystal data, which is clear and accurate, suitable for a variety of environments. 3. The electromagnetic detector has a sound and light alarm function. When the test result exceeds the rity value, the instrument will automatically alarm, support data lock, and the radiation value is locked. 4. Radiation tester fuselage adopts non-slip design, holding comfort, easy to use. 5. Digital radiation detectors can be used for electric fields and magnetic field measurements, beautiful practical. Specifications: Condition: 100% Brand New Material: Plastic Measuring range: 1V/m-1999V/m Measurement object: electric field Measurement accuracy: 1V/m, 0.01ut Resolution: 0.4 seconds Size: Approx.150*76*38mm / 5.9*3.0*1.5in Weight: Approx.146g / 5.1oz Package list:  1 * Radiation Detector (Battery not included) 1 * Instruction Manual Package List