Using the Electromagnetic Radiation Tester is straightforward and efficient. To begin, power on the device and select the appropriate measurement mode. Hold the tester close to the home appliance you wish to evaluate, such as a microwave, refrigerator, or computer. The digital screen will display the EMF levels in real-time, allowing you to monitor and record the data. This tester is ideal for routine checks to ensure that your household appliances are within safe radiation limits. Features -Color:Black -Material:Plastic -Size:13.50X7.00X3.00cm/5.31X2.75X1.18in -Note: without battery -Reading display: three-and-a-half- LCD display, maximum reading 1999 -Test bandwidth: 50HZ-2000MHZ -Sampling time: about 0.4 seconds -Working voltage: 9V -Battery model: 6F22 9V (Not Included) -Portable and lightweight: compact and lightweight design makes it easy to carry and use, suitable for both home and office environments. -Userfriendly operation: the device is designed for simplicity, requiring only proximity to the appliance to start testing for radiation -Precision monitoring: offers accurate and reliable measurements of electromagnetic fields, providing peace of mind about your home’s safety -Convenient portability: its small size and lightweight nature make it easy to carry and use anywhere, ensuring continuous protection -Clear display: equipped with a multifunctional display that clearly shows radiation levels, making it easy to monitor and understand Package list: 1 x radiation tester