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First Alert SC9120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm and Carbon Monoxide Combo Alarm
First Alert SC9120B 120V AC/DC Hardwired with 9V Battery Backup Ionization Smoke Alarm and Carbon Monoxide Combo Alarm


 
This item qualifies for California Carbon Monoxide CO law requirement. Please click here for details.
Our Price: $29.58
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Model: FIRST-ALERT-SC9120B
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Technical Spec Downloads
 
Technical Spec

Hardwired ionization/CO combination alarm meets new construction requirements.

  • Electrochemical Carbon Monoxide Sensor - the most accurate sensor available as compared to other sensing technologies
  • Single button test/silence
  • 9V Alkaline Battery Backup
  • Latching alarm indicator - remembers which unit initiated an alarm
  • Two silence features - can silence the low-battery chirp for up to eight hours or temporarily silence an unwanted nuisance alarm
  • End of Life Signal provides audible notification alarms needs to be replaced
  • Intelligent Sensing TechnologyTM helps reduce the number of nuisance alarms
  • Perfect Mount - allows for easy alignment of alarm
  • Dust Cover
  • Easy Installation/Maintenance - Preferred features include a large opening in the mounting bracket for easy access to wiring. Keyhole slots in the mounting bracket eliminate the need to remove the electrical box screws for installation. A battery pull tab keeps the battery fresh until the home is occupied. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the side load battery compartment. Two locking features are provided to prevent battery theft and/or theft of the unit. Connection to AC power is made with a "Quick-Connect" wiring harness. Installation is quick, easy and cost effective.
  • 10-Years Limited Warranty
Model # SC9120B
Weight 8.5 oz
Dimension 5.6" dia x 2.0"H
Operating Voltage 120V AC 60Hz pure sine wave w/9V battery backup
Operating Current .09 amps (standby/alarm)
Temperature Range 40 degrees F (4 degrees C) to 100 degrees F (38 degrees C)
Humidity Range 10% to 95% relative humidity (RH)
Audio Alarm 85dB at 10 feet
Test/Silence Electronically simulates a smoke or carbon monoxide condition, causing the unit to alarm.
Alarm Reset Automatic when Smoke and/or CO clears. Press test/silence button to reset manually.
Interconnections See User Manual
Smoke Sensor Dual Ionization CO Sensor Metal Oxide
Indicator Lights/Sounds
  • AC Power: Constant Green LED
  • DC Power: Intermittent Green LED
  • Local Alarm: Red LED flashes rapidly
  • Remote Alarm: Red LED out Latching Alarm: Red LED flashes every 5 seconds after local alarm stops
Listing UL217 & UL 2034 Standards

BRK SC9120B diagram


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