Compact, freely programmable gas alarm station with wall-mounted housing and display for connecting up to 2 or 4 sensors. The evaluation unit allows various types of gases to be monitored. The gas alarm station features a display which shows in alternation different measurement points and 3 operating levels: measurement level, parameter level and service level. Alarms and faults can be assigned to the potential-free relay outputs and external functions can be activated (horn, etc.).