Do not forget that carbon monoxide alarms can be great life savers. Especially those which have smoke detectors integrated within the device itself. Nothing works better than a combined carbon monoxide cum smoke detector created using the superior sensor technology of CO sensors and performing to their best using built-in buzzers, displays, and lights. Adding up to the performance of the devices using external buzzers and flash lights further enhances the capacity of the device you buy.
So yes when you are purchasing a new carbon monoxide alarm purchase a set of external side warning devices. They really give you fulfilling and content sleep in the nights. This is because you are completely assured about the effectiveness and accuracy of the device which can wake you up even in the middle of the night thanks to the power of the buzzers.