Approximate Carbon Monoxide Inhalation Time and Toxic Symptoms

Concentration of CO in the air: ppm=parts per million

• 50 ppm - The maximum allowable concentration for continuous exposure in any 8 hour period.
• 200 ppm - Slight Headache, fatigue, dizziness, nausea after 2-3 hours
• 400 ppm - Frontal headaches within 1-2 hours, life threatening after 3 hours
• 800 ppm - Dizziness, nausea and convulsions within 45 minutes. Unconsciousness within 2 hours. Fatal within 2-3 hours
• 1,600 ppm - Headache, dizziness and nausea within 10-20 minutes. Fatal within 1 hour.
• 3,200 ppm - Headache, dizziness and nausea within 5-10 minutes. Fatal within 25-30 minutes.
• 6,400 ppm - Headache, dizziness and nausea within 1-2 minutes. Fatal within 10-15 minutes.
• 12,800 ppm - Fatal within 1-3 minutes.

First Alert C0410 Battery Powered Carbon Monoxide Alarm

Loud 85dB/Backlit Digital Display for Hazard Level and Peak Level / 2AA Batteries / Mute Button

Every home needs at least one Battery powered carbon monoxide alarm. If you have a house with several levels, each floor level needs at least one carbon monoxide alarm. The First Alert CO410 battery powered carbon monoxide alarm has an electrochemical carbon monoxide sensor. It is the most accurate technology available for detecting carbon monoxide comparing to other common sensing technologies.

• Alarm has EZ view Backlit Digital display: Easy viewing of danger levels, current, and peak CO levels in your home. Illuminates only when in alarm or button is pressed
• Battery powered carbon monoxide alarm: 2 AA Batteries included
• Remote control Mute feature for this alarm: Point & click any remote control unit to quiet unwanted alarms (remote not included)
• EZ access battery door for AA batteries front-open compartment allows easy battery change without dismounting alarm
• Mute button: Mutes unnecessary alarms, also tests alarm functions with same button
• Low battery signal mute
• Quiets low battery signal for up to 8 hours
• Electrochemical carbon monoxide sensor most accurate technology available for detecting carbon monoxide
• End of alarm life timer
• Alarm chirps when it is time to replace it
• 2 AA batteries included
• Loud 85db alarm
• 5-year limited warranty
• Carbon monoxide alarms should be replaced every 5 years for maximum protection
• Meets UL2034 Standards

WHAT LEVELS OF CO CAUSE AN ALARM?

Underwriters Laboratories Inc. Standard UL2034 requires residential CO Alarms to sound when exposed to levels of CO and exposure times as described below. They are measured in parts per million (ppm) of CO over time (in minutes).

UL2034 Required Alarm Points*:

• If the alarm is exposed to 400 ppm of CO, IT MUST ALARM BETWEEN 4 and 15 MINUTES.
• If the alarm is exposed to 150 ppm of CO, IT MUST ALARM BETWEEN 10 and 50 MINUTES.
• If the alarm is exposed to 70 ppm of CO, IT MUST ALARM BETWEEN 60 and 240 MINUTES.

*Approximately 10% COHb exposure at levels of 10% to 95% Relative Humidity (RH). The unit is designed not to alarm when exposed to a constant level of 30ppm for 30 days.