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  First Alert 3120B Hardwired Photoelectric and Ionization Combo Smoke Alarm with battery Backup
First Alert 3120B Hardwired Photoelectric and Ionization Combo Smoke Alarm with battery Backup


 


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Description
 
The BRK First Alert 3120B is a dual sensing detection unit that utilizes both photoelectric and ionization sensors to detect a multitude of smoke types. The BRK First Alert 3120B photoelectric sensor is designed to identify larger smoke particles usually associated with smoldering flames, while the ionization sensor will detect fast flaming fires. The BRK First Alert 3120B will provide detection quickly and will serve as you first line of defense.  This state-of-the-art device has several indicators based on its recent activity; a alarm latch which exposes to identify that it is the imitating alarm (if interconnected to other devices), as well as a battery latch which will be exposed when a new battery is needed. The backup batteries (2 x AA) inside the BRK 3120B will provide additional power if needed during power loss.
The First Alert BRK 3120B meets all requires of UL217, CSFM, NFPA 72, HUD, FHA and other agencies requiring an AC/DC Hardwired photoelectric and ionization combination smoke alarm. In addition, the First Alert BRK 3120B incorporates BRK’s patented OptiPath technology designed to maximize effectiveness when mounted against a wall, or on a ceiling. The OptiPath technology allows for 360 degrees of detection.

SPECS:
Utilizes both ionization and photoelectric smoke sensors for maximum protection
Two Latching Features - Alarm Latch and Low Battery Latch
Two Silence Features - Alarm Silence and Low Battery Silence
Two AA Battery Backup
Optipath 360 Technology
10-Years Limited Warranty
Model # 3120B
Weight 9.5 oz
Dimension 5.0" dia x 2.0"H
Operating Voltage 120V AC 60Hz w/ two 1.5V AA battery backup
Operating Current 0.07 amps (standby/alarm)
Temperature Range 40°F (4°C) to 100°F (38°C)
Humidity Range 10% to 90% relative humidity (RH)
Audio Alarm 85dB at 10 feet
Test/Silence Electronically simulates smoke condition, causing the unit to alarm Press and hold test/silence button
Alarm Reset Automatic when smoke clears
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 Photoelectric and Ionization
Indicator Lights/Sounds
AC Power: Constant Green LED
DC Power: Intermittent Green LED
Local Alarm: Red LED flashes rapidly
Remote Alarm: Red LED out.
Alarm Latch: LED flashes red 2 sec on, 2 sec off after local alarm stops
Low Battery Latch: LED flashes green 2 sec on, 2 sec off

Average Rating: 5 of 5 Total Reviews: 101 Write a review »

  0 of 0 people found the following review helpful:
 
Great prices and shipping February 11, 2016
Reviewer: chris-h from IL United States  
I've purchased from this website twice and recommended it to others.

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  0 of 0 people found the following review helpful:
 
Great alarm, great company January 29, 2016
Reviewer: Brian Ransom from Milton, PA United States  
These are great dual sensing alarms.  I have used them in both my house and my parents.  Love SmokeAlert.  Best pricing, super fast shipping.

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  0 of 0 people found the following review helpful:
 
Smoke detector January 26, 2016
Reviewer: Mathew Champlin from Jericho, VT United States  
Great service, great price,  fast delivery

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  0 of 0 people found the following review helpful:
 
Great! January 25, 2016
Reviewer: Anonymous Person from FL United States  
Used the 3120B to replace the old ionization smoke detector.  Peace of mind knowing that both type of detection are now included.

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  0 of 0 people found the following review helpful:
 
Easy to install; uses both detection methods January 20, 2016
Reviewer: Roger from Austin, TX United States  
I replaced my 19-year old smoke detectors that were no longer working when I tested them. The old ones were a different brand, but the First Alerts were the same size. Thus, there was no need for any touch up painting.  Installation was simple - changed the mounting brackets and connector plugs (make sure you turn off the breaker that controls the detectors).  I like that these use AA batteries instead of the far more expensive 9-volt batteries.  If the alkaline AA batteries that came with the detectors don't last very long, I'll replace them with lithium AA's.  I  was willing to spend a bit more for detectors that use both photoelectric and ionization methods.

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