My 2KW Honda generator will trip my CO alarm if the exhaust is pointed towards the trailer. My Honda generator sits on my dropped tailgate of my F150 Truck...
The low battery noise is a chirp here but the alarm is a steady continuous noise... I knew one guy had two CO alarms installed and didn't worry about anything unless both of them was sounding an alarm haha...
I also have a smoke alarm in the ceiling of my other trailer which was always going off especially when we were cooking on the trailer stove... I finally pulled the batteries on that one...
Roy Ken