Model 10C Features two alarm relays, a four-character alpha-numeric display w/scrolling operator interface, and range of detection programmable from 1.00 to 9999 (ppm, %, ppb) Model 12B Features three alarm relays, a three-character seven segment display, and range of detection programmable from 1.00 to 999 (ppm, %, ppb) Detcon Model Series 10 and 12 gas detection and alarm systems consist of single sensor control cards that can be integrated into one system design to create multi-function monitoring and control of a wide range of field devices. Field devices include gas detection sensors, flame and fire detection devices and process sensors. Each control card is capable of supervising a single field device, displaying current status of that device and providing alarm relay outputs once user-configured limits are detected. Gas detection control modules display the real time concentration of a wide range of toxic gases, combustible gas, and oxygen sensors that output a 4-20 milliamp signal. The flame detection module displays the real time status of any flame detector with a 4-20 milliamp output signal. The alarm annunciator module can be used to monitor smoke and thermal detectors, pull stations, and any dry contact closure device.