hohenwald48 wrote:
A CO detector alarms due to a very high level of CO over a short period of time. However, it also alarms due to a low level of CO over a long period of time. For that reason it would be difficult to test even with a supply of CO available since the alarm is a function of both CO level and exposure time. Best to just use the button and replace the detector at the recommended interval.
That is my fear that there is a lot of trust we must place in the detector not being defective. That button is not a true test of the detection abilities. What can you do though except replace them in accordance with their stated duty cycle?