2012JA smoke alarms are photoelectronic detectors designed for applications where low voltage Class 2 wiring may be used. They are non-latching and offer an 85 dB alarm horn and Form C alarm contact. Their external pushbuttons allow for testing of the alarm function as well as silencing. Up to 12 units can be interconnected so that if one unit alarms, all units alarm. Form C alarm relays with an eight second delay are included for monitoring or controlling external functions. Interconnected units can be wired so that the alarm relays activate on any alarm or individually. A visible LED indicator flashes once every 40 seconds in standby and rapidly during an alarm when smoke is detected. On interconnected units, only the smoke alarm that detects smoke will flash, thus providing identification of the alarm source.