The best method of detection is to use a carbon monoxide detector in a central location. A carbon monoxide detector looks a bit like a smoke alarm. It monitors the air for carbon monoxide and gives an alarm if a specific level is detected. Ideally, you should have at least one detector adjacent to every living area, centrally located, or on each floor in your home. Carbon monoxide detectors are very effective when used in combination with a service plan. Call 603-923-4570 for additional details about purchasing a carbon monoxide detector.