ABSTRACT
The thesis is a response to the urgencyneeded to checkmatecommercial losses in electrical distribution system in Nigeria. The system utilizes an electro-optical sensor incorporated into an energy meter to detect when the meter cover is opened. This triggers a series of actions within the system which eventually lead to the sending of a message containing the meter number and address from which the tampering originates to a GSM phone which will be located at the Electrical Distribution System in Nigeria office. This project report discusses in detail the steps taken in the process of realizing the set goals including the design,calculations, implementation and testing. The construction was made with reliable and readily available components in the market. The system was tested and the operations were found satisfactory.