Do you have a Miprom 21 elevator control on service? This app will help you navigate the menus, explaining what all the buttons do and show hundreds of typical parameters, along with their descriptions. It also features a “Search” function to help you find that elusive parameter, allowing you to search the parameter names, their descriptions, or both. To do a "Search", hit the three little dots in the upper right hand corner and select "Search". This app will also show you all the inputs and outputs on the Relay Pilot Board including their descriptions. If you notice any typos, problems, or have some suggestions, send me an email at [email protected].