Therefore, it is critical to use this instrument for radon monitoring in environments such as homes, building construction, schools, and public spaces. The device is easy to operate, just turn it on, place it in the detection area, and obtain radon concentration data in real time. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! This radon detector is an efficient, portable device capable of monitoring radon concentrations in real time. Radon can enter buildings through crevices in floors, walls, and pipes, and detecting and controlling radon levels is important to a safe living environment. With their ease of use and efficiency, our radon detectors are ideal for keeping your home and work environment safe., Manufacturer: Akfldms