Peak level memory recalls the highest carbon monoxide level detected.

Updated digital reading every 15 seconds lets you see if levels change.

Backlit digital display readout from 30-999 PPM provides continuous monotoring of CO Levels.

Test / reset button allows you to immediately silence alarm and test alarm electronics.

Low battery signal alerts you when the battery needs to be replaced.

Safety feature makes it difficult to close the cover without batteries in the unit.

No costly sensor replacement needed.

Loud 85 decibel alarm.

5 year warranty on alarm.