Ideal for family, workers, and frequent travelers seek to monitor electromagnetic exposure in living space or mobile environment Accurately measure electromagnetic radiation from phones, and electronics with this USB rechargeable detector, featuring and high precisions sensors for environmental assessments Proactively guard your well being with radiation detection, combining lightweight design and USB charging for continuous protections against invisible threats ABS construction houses a large screen with interfaces, clear radiation readings and easy operate for both professional and home users Use near routers, during travel with electronic devices, or in workplaces to identify and potential radiation risks around computers and appliances, Manufacturer: JunsenF