The aMESM is an advanced electrical installation safety Testing tool for Android devices. It enables fast and simple data management of tested installations, as well as a quick overview of already performed tests. The Application enables the user to send results to the main office before leaving test site and enter and save data to the test instrument by using the smart phones’ keyboard. It enables creation of customer and test location database as well as adding text and pictures, videos or voice records to the specific position in the test structure. All these features enable the user faster and easier data handling.