You can read the general description of the LOAC here.
Last version of the LOAC developed to focus on continuous observation.
This version is made up of a LOAC sensor, a GPS and an embedded acquisition system.
The data collected and measured are stored on a USB pendrive or available in real-time by connecting the LOAC-R to an internet connection.
Powered by the mains or by its internal rechargeable battery.
It can be used on surface, on roof top of a building, in a tunnel or even mounted on a mast.