"First-out" function recognizes the first tripped alarm
Compact 1/8-DIN annunciators are perfect for replacing stand-alone lights! They can be programmed for all the common ISA alarm sequences and accept switch, transistor, and logic level inputs. The NEMA 4X front panel, wide operating temperature range, and sunlight readable indicators make these units well suited for outdoor applications. Front-panel buttons and screw terminal connectors are provided for Silence, Acknowledge, and Reset functions. A built-in 85 dB horn provides audible indication of alarm condition and up to two relays can be used to control external devices such as beacons or horns. All programmed settings are stored in nonvolatile memory if power is lost.