The AMC 1800 is a programmable multi-channel gas monitor. Combined with Armstrong’s wide selection of gas sensor/transmitters, it provides a versatile and powerful gas monitoring platform. Standard features include powerful programming capabilities, a digital display, up to 32* sensor/transmitter inputs, and internal audible alarm. The unit can be programmed with up to three levels of ascending or descending alarm concentration threshold modes. There are up to four dedicated relays per sensor/transmitter input.