SC9120 Smoke and Carbon Monoxide Alarm

SC9120 smoke and carbon monoxide alarms are specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories and other multi-family dwellings. They meet building codes where AC/DC smoke and carbon monoxide alarms are required either separately or in combination. 

The alarms feature a dual ionization smoke-sensing chamber and an electrochemical carbon monoxide sensor, an 85 dB horn, either a 9V battery backup or a 10-year locked lithium battery backup, and a silence feature. Connection to AC power is made with a quick-connect wiring harness. Installation is quick, easy and cost effective.

• An ionization smoke-sensing chamber and an electrochemical CO sensor
• Powered by 120V AC, 60Hz and have either a monitored 9V battery backup or a 10-year locked lithium battery backup, and a solid state piezo horn rated at 85dB at 10 feet and capable of self restoring
• Self diagnostic tests and issues a malfunction warning (three chirps) if the unit malfunctions
• A visual power-on indicator to confirm unit is receiving AC power or has switched to battery backup mode (separate LEDs to indicate a smoke or CO alarm)
• The CO sensor is adjusted not to detect CO levels below 30 ppm and will not alarm when exposed to constant levels of 30 ppm for 30 days (it will alarm at the following levels: 400 ppm CO between 4 and 15 minutes, 150 ppm CO between 10 and 50 minutes and 70 ppm CO between 60 and 240 minutes)
• A test/silence button to check all alarm functions and to silence any nuisance alarms (low battery silence feature to quiet the low battery chirp for up to eight hours)
• Two Locking features — tamper-resistant locking pins that lock battery drawer and/or alarm to mounting bracket
• Operates between 40 and 100 °F (4 and 38 °C) and relative humidity between 10% and 95%
• Plug in connector and capable of interconnection of up to 18 alarms, 12 of which can be smoke alarms

• UL217
• UL2034
• CSFM
• NFPA 72 
• NEPA 720
• ICC