The Sigma A-Si range of status indicators provide detailed status information for Sigma A-XT releasing control equipment.
All models provide high brightness, LED indication of Manual Only, Automatic and Manual, Abort operated, Disabled, Imminent and Released conditions. Models are also available with zonal fire indicators and a common trouble indicator.
For systems where local control of the Automatic/Manual mode and or a Manual extinguishant release control are required, units are available with these controls fitted.
All models have supervised inputs for the remote connection of Automatic/ Manual mode and abort switches.
All units contain a large, LED display which shows a countdown of the time remaining until release in seconds.