Features This product can be used for electric and magnetic field measurement, beautiful and practical. Using large LCD data display, the reading is clear and accurate, suitable for a variety of environments. The fuselage has a non-slip design, which is comfortable to hold and easy to use. It supports data locking and one-key locking of radiation values. With sound and light alarm function, when the detection result exceeds the safe value, the instrument will automatically alarm. Fashion design, simple operation, easy to carry, convenient for on-site measurement. Feature: -This product can be used for electric and magnetic field measurement, beautiful and practical. -Using large LCD data display, the reading is clear and accurate, suitable for a variety of environments. -The fuselage has a non-slip design, which is comfortable to hold and easy to use. It supports data locking and one-key locking of radiation values. -With sound and light alarm function, when the detection result exceeds the safe value, the instrument will automatically alarm. -Fashion design, simple operation, easy to carry, convenient for on-site measurement. 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