Looking to add-on or redo a section of your home? Kopp Electric can provide professional service for evaluating, discussing and repairing or installing electric service to keep your home safe and efficient. CO detectors are designed to measure CO levels over time and sound an alarm before dangerous levels of CO accumulate in an environment, giving people adequate warning to safely ventilate the area or evacuate. I cannot say enough. Kopp Electric is very punctual and gets you up and running quickly.