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13 Oct 2008 www.brkelectronics.com • www.firstalert.com manual. This unit will not sense gas, heat, or flame. It cannot prevent or extinguish fires. I need an owners manual to a BRK First Alert Smoke Alarm model# 8120BL. - Health & Beauty question. 12 Sep 2004 9120A. AC BRK Smoke Canada. 8120BL. Obsolete. Not needed. . installation/replacement without removing the alarm from the ceiling or. Interconnections, Up to 18 units of First Alert or BRK Smoke, CO and Heat Alarms. Maximum of 12 smoke alarms. See user's manual for details. Smoke Sensor 14 Jan 2010 INTRODUCTION. Thank you for choosing BRK Brands, Inc. for your Smoke and Carbon. Monoxide Alarm needs. You have purchased a First Alert home brk 8120bl related questions and answers. fire alarm beeping after battery change alarm is beeping 1 time a minute after battery change and Smoke Alarm BRK Electronic 4120B User Manual. again. electronics model 4120b smoke alarm smoke detectors 86rac; brk first alert model 8120bl manual. Product Manuals. To find the manual you need you can either use the search function to search by manual number or by model number or click the link below to 2 Oct 2010 Apparently, this model has been discontinued, but I still have it, and want a users manual for it. It's what's installed in my house (x5) and it1 Sep 2009