Carbon Monoxide Analyzer CO1000 - SupcoCO1000 carbon monoxide meter The CO1000 makes it easy to check carbon monoxide levels in both work and home environments. Compact, accurate, and simple to useit's a must have for HVAC pros focused on safety and compliance. Key features Measures CO levels quickly and accurately Backlit LCD for clear readings in any lighting Automatic calibration ensures reliability Max hold and data hold functions Includes durable carrying case for easy transport