The digital input module from the System pro M compact® InSite series is used to receive data from wired connected devices (accessories, meters). It can read the contact status and record consumption values and is compatible with water, gas and heat meters with pulse output. The connection to the InSite bus is made using a ribbon cable. The ID address can be assigned using a button, and the correctness of the installation and functionality is indicated by an optical display. In addition, no external power supply is required.