The D1x, GNEx, STEx, AlertAlarm and AlertAlight ranges of alarm horn sounders, LED and Xenon Strobe beacons, plus combination sounders with beacons, are available with SIL1 and SIL2 compliance as standard. This globally approved range of signals provide the ultimate in life safety notification in both hazardous area and safe area applications. As compliance is achieved in a 1oo1 architecture, no duplication or redundancy of devices is required. In addition to the standard SIL1 and SIL2 compliance, the unique E2S SIL2 diagnostic module can be specified, providing a solution for safety systems requiring warning signals with active diagnostics and SIL2 compliance via Route 1H in a 1oo1 configuration. 

E2S Warning Signals | e2s.com