The Kidde
Combination KN-COSM-1B is part of the
Smoke & Carbon Monoxide Detectors test program at
Consumer Reports. In our lab tests, Carbon Monoxide Detector
models like the Combination KN-COSM-1B are rated on multiple criteria, such as those
listed below.
High CO levels:
High CO levels rates a model's response to CO of 400 parts per million.
Low CO levels:
A high score means the model reacts quickly to low levels of consistent carbon monoxide. Top-scoring models help keep you safe by sounding an alarm before gas builds up.
Display/voice:
Display/voice rates the accuracy of the CO level either displayed digitally or conveyed by voice message.
