The Vevor radon detector is designed for reliable indoor air quality monitoring with an ionization chamber sensor and a wide measuring range of 2Bq to 20kBq/m³. It provides an initial reading in 10 minutes and refreshes data every 10 minutes on a color LCD screen for easy real-time viewing. Dual alarm modes with LED flashing and buzzer alerts help notify you when radon reaches hazardous levels. The unit supports wired or wireless use with a rechargeable 5000mAh battery for flexible placement in homes, offices, schools, hotels, and more.