First Alert 1039807 Hardwired Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup BF10 This is what heats the

This is what heats the oil

12" standard pipe (12" inner diameter

Wall Sconce

Overall length: 5-1/4" (133 mm)

Heavy-duty ball bearings are sealed

First Alert 1039807 Hardwired Smoke & Carbon Monoxide Alarm with 10-Year Battery Backup BF10 This is what heats theThe First Alert Hardwired Combination Smoke and Carbon Monoxide Alarm uses an electrochemical CO sensing technology and Ionization sensor for smoke detection. It includes a 9 volt battery for continued function in the event of a power outage, and it features a test silence button, tamper resistant locking brackets, and a universal mounting bracket. This CO smoke detector can be connected to other compatible BRK and First Alert hardwired smoke and