Abstract: Apparatus for controlling and monitoring vehicle parking meter systems wherein a plurality of programmable single space parking meters enable the resetting of time upon a vehicle departure and the occurrence of any other operational parameter; multiple low power microprocessors for monitoring and initiating changes in the logic for all the devices monitoring the parking meter spaces; a plurality of specialized microprocessors for monitoring the system to assure reliable operation thereof; a master operational microprocessor connected to each of the additional low power microprocessors for monitoring of and control of any changes in the logic to establish new operating parameters for the low power microprocessors; a centralized operational controller accessible to parking personnel to monitor and control the space monitoring units from a remote location; a pass-through radio frequency communication device for passing messages from the centralized operational controller to and from each space monitoring unit by