Battery Operated (2AA’s included) – Provides protection during power outage.

Low Battery Hush - Silences low battery chirp warning for up to 12 hours in order to maintain protection without having to replace the batteries at an inconvenient time.

Battery Lockout System – Deters covering battery compartment without installation of batteries.

Event Memory - If the unit has detected CO concentrations of 100ppm or greater, the green LED will flash every ten seconds.

Slide-out Battery Door Cover – Gives immediate access to batteries.

Test/Reset Button – Tests the unit for proper operation

• Resets the Carbon Monoxide Alarm

Low Battery Signal – Alerts user when the battery needs to be replaced.

Green LED – Flashes every 60 seconds to indicate the unit is operating properly. The green LED will also flash before a CO reading is taken and when any button is pressed.

Red LED – When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound. The carbon monoxide alarm pattern is 4 short beeps, followed by 5 seconds of silence, followed by 4 short beeps with a corresponding red LED flash. This cycle will continue for 4 minutes and then change to 1 cycle every minute until the device is reset or the CO is eliminated.