Electrical Definitions. Sealable Equipment. Equipment enclosed in a case or cabinet that is provided with a means of sealing or locking so that live parts cannot be made accessible without opening the enclosure. The equipment may or may not be operable without opening the enclosure.
How long does a Carbon Monoxide Alarm last? First Alert alarms are warranted for 5 years, then it should be replaced with a new CO Alarm. SensorPack Modules and batteries should be replaced as needed for those alarms requiring them. Source(s): http://www.firstalert.com/CarbonMonoxide...
The Alta lasts a surprisingly long time - about five days according to Fitbit, but seven to eight by our testing. However there are still ways to prolong usage. There's a maximum of eight alarms you can set, and each one you add reduces battery life by a small percentage. So less alarms, longer battery life.