The Gas Emergency Monitors G3 and G6 display gas emergency signals generated by switch gauges or other potential-free contacts. They are also particularly suited for retrofitting older area control units with no dedicated alarm system. Terminals are used for the direct connection of the potential-free contacts for each gas type. When an operational pressure threshold is reached, and when the contacts open, a separate visual and audible alarm is triggered for increasing and decreasing pressure. The 3G/6G monitors are equipped with relay driver outlets for the connection of a relay module which can transfer a signal for each gas type. The monitors are also equipped with a vacant base for an optional transceiver that can transmit all alarm signals to the Dräger Alarm Management System.