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...
Easy installation. All in the palm of your hand. Protect Your Home with 10-Year Alarms Donât wait, check the date! All smoke alarms should be replaced every 10 years. First Alert offers a complete line of 10-year sealed battery smoke and carbon monoxide alarms. No costly battery replacements for the life of the alarm.