Description: LCD display of this radiometer has backlight, which can be turned on or off according to your needs, and it can also display graphics to show the radiations trend. It has the function of data locking, which can lock the radiations value with one key, making it easier for you to read the test data. With three-in-one design, this radiometer can detect electric field, magnetic field radiations and temperature. It has an audible and visual alarm function, and it will give an audible and visual alarm when the detected data exceeds the safe value. It is constructed of abs material. The length of this product is 152mm, the width is 52mm and the height is 26.5mm. It can be used in homes, offices, outdoors and indoors, computers, TVs, refrigerators, etc. Item Name: Radioactive Detector Material: ABS Features: Accurate Measurement, Portable, Effective Reading Display: 3-1/2 Digit Display Electric Field Accuracy: 1V/m Magnetic Field Accuracy: 0.01uT Temperature Accuracy: 0.01 Degree Celsius / Fahrenheit Range: Electric Field: 1v/m~1999v/m Magnetic Field: 0.01uT~99.99uT Temperature: -10 Degree Celsius ~ 70 Degree Celsius Alarm Threshold: Electric Field: 40v/m Magnetic Field: 0.04uT Test Bandwidth: 5mHz-3500Hz Sampling Time: About 0.4S Working Environment Temperature: 0 Degree Celsius~50 Degree Celsius Working Environment Humidity: 80%RH Working Voltage: DC4.5V Power Supply: 3 x AAA Batteries (Not Included) Size Details: L: 152mm, W: 52mm, H: 26.5mm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Radioactive Detector 1 x User Manual