First Alert Combination Smoke Carbon Monoxide Alarm, 120V AC, 9V Battery Backup, 6 Pack - SC9120B
First Alert Combination Smoke Carbon Monoxide Alarm, 120V AC, 9V Battery Backup, 6 Pack - SC9120B
First Alert SC9120B is a hardwired ionization smoke and carbon monoxide combination alarm with a 9V alkaline battery backup. It includes a latching alarm indicator, single-button test/silence control, and an end-of-life signal.
- Pack quantity: 6
- Power: 120V AC with 9V battery backup
- Carbon monoxide sensor: Electrochemical
- CO sensor and end of life: 10 year
- Side-load battery drawer
- Universal mounting bracket
- Quick-Connect wiring harness
- Tamper-resistant locking pins
- Includes dust cover
- Low-battery chirp silence: Up to eight hours
Shipping, returns & fit
Shipping is free on U.S. orders of $75 or more; orders under $75 ship for a flat $5.95. We currently ship to U.S. addresses only.
Orders are picked and packed within 1-2 business days. Once shipped, delivery normally takes another 3-7 business days, and you'll receive a tracking link by email. Full details on our Shipping Policy.
You have 30 days from delivery to return any unworn item with tags in its original packaging. Return postage is paid by the buyer, unless your item arrived damaged, wrong, or never arrived — in those cases we replace it or refund you in full and cover the postage.
Approved refunds go back to your original payment method within 5–10 business days. See the full Refund Policy.
Sizes, quantities and compatible finishes are listed on this page. Not sure what is safe for your wheel? Email us a photo and we will point you to the right product. Professional-grade detailing supply. Always test on a small area first and follow the directions on the label.
support@swwheelz.com, or use our contact form. A real person reads every message, Online orders 24/7 · Support Mon-Fri, 9 AM - 5 PM ET — usually answered the same business day.