During a warning or danger condition, what happens to the detector head indicators?

• A. Detector head indicators illuminate for all heads.
• B. Detector head indicators illuminate corresponding to the detector heads sensing the condition.
• C. Detector head indicators turn off.
• D. Detector head indicators flash irregularly.

Answer: (B)

When a warning or danger condition occurs, the detector head indicators light up only on the heads that actually sense the condition. Each detector head monitors its own area, so if that head detects the gas or hazard, its indicator illuminates. Heads that aren’t sensing anything stay dark. This lets you quickly see which specific locations or zones are affected rather than signaling all heads, making it easier to pinpoint the source and focus the response.