The system consists of Meter Interface Units (MIUs) which are installed at each meter, a Portable Unit / Hand Held Data Collector (PU or HHDC) for reading the data from these MIUs, and a PC based station.
During operation, the PU is taken past the MIUs (either walk-by or drive-by) and during this drive by it collects the meter readings using a wireless link to the MIUs. These records are stored in the PU memory, and later can be transferred to the PC station over an USB interface.
The system does not require any repeater stations, since the PU will be driven past each MIU for reading the meters.
The system size can be upto 65000 MIUs