The gas alert countdown is an optional gas feature that creates a short delay before a high gas alert is delivered to Blackline Live and to monitoring personnel.

This feature will help to prevent false alarms from being delivered to monitoring services. Gases like CO and O₂ can spike and dip very quickly, setting EXO into high gas alarm even when gas levels go back to normal.

Typically, when a device’s high gas threshold — determined in the configuration profile — is crossed, the device will immediately send an alert to Blackline Live. This is done so that monitoring personnel can investigate the incident and follow up with the device user to ensure their safety.

Since the alert is sent immediately, it can create false alarm scenarios where monitoring personnel will be alerted even though the exposure was momentary, and the device user is back in a safe area.

When the gas alert countdown feature is enabled, the device will wait a configured amount of time before sending the alert. EXO will still display red lights and a high urgency notification sound so the user knows to leave the immediate area.

With the gas alert countdown enabled, the banner at the top of the screen will show the remaining time before an alert is triggered in Blackline Live. If gas levels return to normal before this time has elapsed, the alert will be cleared. The gas exposure will still be visible in the device history view in Blackline Live but will not appear as an alert in the Alerts list.

The gas alert countdown feature is turned off by default.