Feature: 1. PRACTICAL: The electromagnetic radiation tester successfully tests and optimises the compatibility of electric and magnetic field radiation for testing and understanding the current state of electromagnetic radiation in indoor and outdoor environments. 2. RADIATION PROTECTION PRODUCTS: The EMF tester has a built in sensor for electromagnetic radiation, which is processed by a micro controller chip and then displays the radiation value in LCD figures. Based on the test results the electromagnetic radiation can be reasonably handled or effectively avoided. 3. ALARM FUNCTION: The digital multi fields EMF meter can detect both electric and magnetic field radiation in one machine, with an audible and visual alarm, and an automatic alarm when the safety value is exceeded; data lock, one key to lock the radiation value. 4. LCD DISPLAY: The digital electromagnetic field radiation detector includes an LCD with a graphical display of radiation value trends, which allows for a radiation assessment and a thoughtful reminder of whether current radiation levels are safe. 5. WIDE APPLICATION: The electromagnetic radiation detector is stylish, compact and portable for easy one handed operation, making it easy to move around or measure in the field. Applications include home, office, outdoor, laboratory, industrial sites etc. Specification: Item Type: Electromagnetic Radiation Tester Material: ABS Size: Approx. 64x28x130mm / 2.5x1.1x5.1in Model: ET925 Battery: 3 x AAA 1.5V ( Not Included) Use: Electromagnetic field radiation detection Scope of Application: Electromagnetic Radiation Monitoring: Home, Office, Outdoor, Industrial Places. Radiation Protection Products Inspection: Radiation Protection Clothing, Radiation Protection Film and Other Protective Products Effect Inspection. Electric Field: Unit: V/m (Volts Per Metre) Accuracy: 1V/m Measurement Range: 1~1999V/m Alarm Threshold: 40V/m Magnetic Field: Unit: uT (Micro Tesla)/mG Accuracy: 0.01uT/0.1mG Range: 0.01~99.99uT/0.1~999.9mG Alarm Threshold: 0.4uT/4mG Reading Display: 3-1/2 Digit LCD Display Test Bandwidth: 5Hz~3500MHz Sampling Time: Approx. 0.4 Seconds Test Mode: Dual Mode Simultaneous Measurement Overload Indication: LCD Display for Maximum Range Operating Temperature: 0°c~50°c Operating Humidity: Below 80% Relative Humidity Power Supply: 3 x 1.5V AAA Battery. Package List: 1 x Electromagnetic Radiation Tester1 x Manual Note: 1. Zeroing the electric field/magnetic field: after power on, press and hold the AVG/VPP and UNIT keys at the same time and enter the zeroing interface after about 2S. When the magnetic field value is flashing and the value is less than 0.1uT, press the Power/Data Hold key briefly to zero the magnetic field value; when the zeroing is completed, press and hold the AVG/VPP key to exit the zeroing interface, or press and hold the Power/Data Hold key to switch off the unit. 2. When the battery icon shows empty, please replace the battery in time.3. For high voltage facilities long distance measurement is sufficient, remember to pay attention to safety.4. Due to possible electromagnetic field interference in the environment, there may be a slight reading when the product is switched on, which is not a fault of the instrument.5. Manual measurement please allow some errors.