The Sigma Si range of status indicators provides detailed information on the status of Sigma XT and Sigma XT+ extinguishing release control equipment. All models offer high brightness, LED indication of manual only, automatic and manual, maintained, disabled, imminent, and released conditions. The Sigma Si 10 lamp version also features zone fire indicators and a common fault indicator.
For systems requiring local control of automatic/manual mode and/or manual release of the extinguisher, units are available with these controls mounted.
All models have supervised inputs for remote connection of automatic/manual and hold switches and are equipped with a large LED screen that displays a countdown of the remaining time until the extinguishing agent is released in seconds.
