A carbon monoxide gas detector is one of the most important pieces of safety equipment that you can have in your home. However, if you don't do regular maintenance on your carbon monoxide gas detector, it will fall to ruin and not live up to its job. Due to this, you really need to do regular maintenance on your carbon monoxide gas detector. This includes testing the siren every six months, and cycling out the batteries even if you're not getting a "low battery" beep. This way, you are covering all your bases in the event that you have a leak.