Only displayed for two gas detectors. The label above this bar shows which gas concentration is currently displayed

Sensor life Symbol – Indicates the end of sensor life

Bump Check Symbol – Indicates successful bump test or calibration

Alarm Symbol – Indicates alarm state.

No Gas Cylinder – Indicates cal gas should not be applied and device must be exposed to fresh air

Cal Gas Cylinder – Indicates cal gas must be applied

PEAK Symbol – Indicates a PEAK reading or high alarm

Minimum – Indicates a minimum value or low alarm

Short Term Exposure Limit (STEL) Symbol – Indicates a STEL alarm

Time Weighted Average (TWA) Symbol – Indicates a TWA alarm

Hourglass – Indicates user should wait

Device confidence indicator

Flow check symbol - Indicates that a flow check is being prepared or should be executed

Battery condition - Indicates the battery charge level

Indicates a battery alarm when flashing

Electronic pulse check symbol - Indicates a currently running electronic check of the sensor

Indicates required interaction

Gas concentration

Volume percent

Parts per million