Feature 1Multifunction, it can detect electric and magnetic field radiation at the same time, and carry out radiation evaluation, and intimately remind whether the current radiation value is safe. 2Sound and light alarm, when detecting that the radiation exceeds the safe value, it will automatically alarm to protect your health and safety. 3Data lock, it can easily lock the radiation value with one key, and it is convenient to measure and record the data. 4Highdefinition LCD display, which can display the trend of radiation value through graphics, so that the fluctuation of radiation can be seen more clearly. 5Stylish appearance, it can be easily operated with one hand, convenient for mobile or onsite measurement, and can be used for measurement in various situations.Item Type: Radiation DetectorModel: ET825Material: ABSPower Supply: 3xAAA 1.5V Battery (Battery Not Included)Application: It is suitable for electromagnetic radiation testing.Monitoring Places: It can detect radiation in homes, offices, outdoors, and industrial places.Testing Items: It can perform radiation testing on mobile phones, computers, TVs, refrigerators, and high-voltage lines.Radiation Protection Products Inspection: it can test the effects of radiation protection clothing, radiation protection films and other protective equipment. Technical Parameters Electric Field Magnetic Field Unit V/m(Volt/Meter) T Accuracy1V/m 0.01T Range 1V/m-1999V/m 0.01T-99.99T Alarm Threshold 40V/m 0.4T Reading Display 3-1/2 Digit LCD Display Test Bandwidth 5Hz-3500MHz Sampling Time About 0.4 Seconds Test Mode Dual Mode Simultaneous Test Overload Prompt LCD Display Maximum Range Operating Temperature 0-50 Operating Humidity Relative Humidity Below 80% Operating Voltage 9V . Package List1 x Radiation Detector (Battery Not Included)1 x ManualNote1. As there may be electromagnetic field interference in the environment, the instrument may have tiny readings when it is turned on, and it is not that the instrument is malfunctioning.2. For high‑voltage facilities, long‑distance measurement is sufficient, remember to pay attention to safety.