SC5 Battery Smart Smoke and Carbon Monoxide Alarm smoke and carbon monoxide alarms
1 report to CPSC, the latest made Oct 14, 2026. A report isn’t a recall.
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.
At a glance
From SaferProducts.gov, released Nov 4, 2026.
- 1report to CPSC
- Oct 14, 2026the latest report was made
- Oct 14, 2026the earliest
- 0with the company’s comments
- Brand
- SC5 Battery Smart Smoke and Carbon Monoxide Alarm
- Maker
- Resideo LLCMakers, importers or sellers, as the reports name them
- Product
- Smoke and carbon monoxide alarmsBoth in oneCPSC’s product type: Combination Fire/Smoke Alarm and Carbon Monoxide Detector (code 714), in Home Maintenance and Structures: Home Security
By month
The numbers, as a table
| Month | Reports |
|---|---|
| October 2026 | 1 |
How badly anyone was hurt
- No one hurt 1 CPSC: Incident, No Injury
As each report says it, in short words; CPSC’s own words are under each.
The reports, as CPSC published them
Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.
Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.
CPSC, SaferProducts.gov public database export. Released Nov 4, 2026. Updated daily.
-
No one hurt Made Oct 14, 2026, sent to the company Oct 19, 2026, published by CPSC Nov 2, 2026
The product, in the report: SC5 Battery Smart Smoke and Carbon Monoxide Alarm. Described as a “2-in-1 device” that “elevates your home’s fire and CO safety”
A summary of interactions with First Alert/Resideo over 5 years and 2 product lines:
Jan2021- Onelink detectors purchased (receipts attached - $810.72) Oct2021- Claim opened to report false alarms. (Case: [REDACTED]) Steps to avoid false alarms were provided but no action was taken on the part of First Alert. (Suggested cleaning, maintenance, placement were already being done. False alarms continued for 2 years.) Aug2023 - Claim opened to report false alarms. (Case: [REDACTED]) First Alert sent out 1 replacement unit . False alarms from multiple units continued. Feb2026- Claim opened to report false alarms. (Case [REDACTED]) Resideo sent out 8 replacement units. (First Alert acknowledged failures and discontinued production of all Onelink units: https://support.firstalert.com/s/active-product/a3J4x0000020RXqEAM/1042136-discontinued) Mar2026- Received SC5 replacements (Order# provided) Jun2026-Oct 2026- SEVEN false alarms within FIVE months. The mute function in the app is frequently unresponsive, and pressing the physical button fails to silence the alarm.
Jun 5: 12:21 AM EST Jul 19: 10:46 AM EST Aug 5: 11:08 PM EST Aug 21: 2:48 AM EST Aug 23: 10:20 AM EST Sep 8: 8:44 AM EST Oct 6: 5:59 PM EST
We’ve had to disconnect 3 units so far. Our home is now under-protected.
Extensive user documentation shows the SC5 line has known firmware defects during self-checks and app lockouts when trying to silence clear-air alarms.
Resideo Customer Care Lead [REDACTED] formally refused a refund, claiming the SC5s were sent as a “goodwill gesture” and carry no warranty despite failing within 120 days of installation and within less than a year of manufacture date (attached).
Given the fact that 2 consecutive generations of First Alert products have failed, more replacement units are insufficient. I am requesting a full refund for the original purchase price of $810.72 so that I can transition our home to a reliable safety system from another manufacturer.
- Model
- SMC0600NV-A
- UPC
- Multiple
- Serial number
- Multiple
- Bought from
- See attached receipts
- Bought
- Mar 4, 2026, about then
- Where
- United States: Home/
Apartment/ Condominium - Who was involved
- Age 8, Unspecified
- The reporter’s relation to them
- Other Relative
- As this report names them
- Brand SC5 Battery Smart Smoke and Carbon Monoxide Alarm, made or sold by Resideo LLC
- How badly, in CPSC’s words
- Incident, No Injury
CPSC’s disclaimer
Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.
Word for word, from the disclaimer in CPSC’s export.
Sources
Sources
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U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.
Released Nov 4, 2026 and checked Nov 4, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.