Radon sources are super localized. The chemical rises from the ground, so monitoring it from HAVEN’s in-duct centralized location would mean it would take longer for spikes to be detected. Why? Because when your air handler is running, it is pulling air into the ducts from all over that particular zone, which means any air quality events get dampened or averaged out by other cleaner air in the home.
With a chemical like radon, it is extremely important to detect local spikes as quickly as possible. This is best done via the specialized EcoQube device.