Start with the news release Omniflex 1mS SOE monitors alarms and logs causes from Omniflex, which we summarised at the time by saying "The Omniflex 1mS SOE system complements Scada and DCS functionality by providing accurate data and minimising plant downtime.". Several months prior to that, we featured the news release Omni alarm annunciators assessed for SIL1 use from Omniflex (UK): "The Omniflex Omni series alarm annunciator range has been assessed as part of the Emphasis project to satisfy the NII (Nuclear Industry Inspectorate) for the product to be used in SIL1 applications. ".
 
In July 2009, we covered the news from Omniflex (UK) - take a look at Alarm annunciator replaces Robinson ALUs which says: "Omniflex has released a 24-way IEC61508 SIL 1 alarm annunciator, which can be used to replace the now obsolete Robinson Alarm Logic Units (ALU). ".
 
Take a look also at the news release from RTK Instruments, Safety annunciator is certified to SIL2, as well as Omniflex custom designs alarm annunciators from Omniflex (UK), and Omni 16C Emphasis-proven for nuclear use from Omniflex (UK).