SKU: 19726604183

First Alert 10-Year Battery Smoke Alarm and Battery-Operated Carbon Monoxide Alarm Value Pack

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Description

First Alert 10-Year Battery Smoke Alarm and Battery-Operated Carbon Monoxide Alarm Value PackComplies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency. 10 year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm Slim profile design is half the depth of a standard detector End of life warning lets you know when it's time to replace the alarm Test silence button for efficient testing to ensure the detector is working

  • Complies with new industry standards to reduce cooking nuisance alarms and provides early warning in the event of a home fire emergency.
  • 10-year sealed battery eliminates battery replacements and low battery chirps for the life of the alarm
  • Slim profile design is half the depth of a standard detector
  • End-of-life warning lets you know when it's time to replace the alarm
  • Test/silence button for efficient testing to ensure the detector is working properly
  • First Alert 8th Generation Smoke Detector meets the latest industry standards.
  • CO Detector features an advanced electrochemical carbon monoxide sensor.

Description


Dual Protection from Smoke & Carbon Monoxide
For comprehensive home safety, pair a First Alert 10-Year Sealed Battery Smoke Alarm with a First Alert Battery Operated Carbon Monoxide Alarm. This provides robust protection against two distinct yet deadly threats. The SM210 smoke alarm features Precision Detection technology to distinguish between cooking smoke and real fires, and also detects smoke from burning synthetic materials, which helps reduce nuisance alarms. Its slim design blends seamlessly, and the 10-year sealed battery eliminates the need for battery replacements.

The First Alert CO400 Carbon Monoxide Alarm uses a highly accurate electrochemical CO sensor to detect invisible carbon monoxide. This battery-powered detector offers flexible placement, ensuring protection even during power outages. When elevated CO levels are detected, a loud 85-decibel alarm sounds that’s designed to alert even sound sleepers. This carbon monoxide alarm also includes low-battery and end-of-life alerts for timely replacement.

User-Friendly Operation and Certified Reliability
Both alarms prioritize user convenience and reliability. The SM210 features an easy test/silence button, with an end-of-life warning after 10 years. The CO400 is simple to set up and will begin monitoring once the battery is inserted. Their straightforward operation ensures critical safety functions are always accessible.

Optimal Placement for Enhanced Safety
For maximum protection, strategically place these alarms throughout your home. Install the Frist Alert SM210 smoke alarm inside every bedroom, outside all sleeping areas, and on every level. Similarly, place the First Alert CO400 Carbon Monoxide Alarm on every level and within each sleeping area. By integrating these effective and user-friendly alarms, you can equip your home with a comprehensive safety net against fire and carbon monoxide for years to come.


Product Details


First Alert 10-Year Battery Smoke Alarm SM210

  • Sensor Type: Photoelectric
  • Power Source: 10 Year Battery
  • Battery Type: Lithium
  • Battery Life: 10 Years
  • Battery Replaceable: No
  • Slim Profile Design: Yes
  • Sound Level: 85 dB at 10 ft.
  • Replaces Model: PR710
  • Standard: Conforms to UL 217 Standard
  • Warranty: 10 Year Limited
  • Product Dimensions (LxWxH): 5.13 x 1 x 5.13 in.
  • Product Weight: .5 lbs.


First Alert Carbon Monoxide Alarm CO400

  • Power Source: Battery Operated
  • Battery Type: 9V
  • Sensor: Electrochemical
  • Simple and Easy to Use: Simply insert the battery, and the CO detector will start to monitor your space for carbon monoxide
  • Single Button: One press to silence and test alarm
  • End of Life Timer: Alarm chirps when it is time to replace it
  • Standard: Conforms to UL 2034 Standard
  • Warranty: 5 Year Limited
  • Product Dimensions (LxWxH): 3.4 x 1.5 x 5 in.
  • Product Weight: .7 lbs.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 19726604183

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Patrick Ryan
Lake Worth, US
★★★★★ 5
Great Watch!
Color: Silver/Black/Gold
It's only been a few days, but I love this watch! Very stylish!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
T
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Tyler Callaway
Bozeman, US
★★★★★ 5
My every day watch. I love it.
Color: Silver/Black/Gold
Is it the nicest watch? Nope. Does the clasp come undone as time goes on? Yep. Do I still wear it every day? Absolutely. This is my daily driver watch. It will win no awards in quality or style, but it looks great, goes with everything, has minimal error as days go by, and is easy to read. Cheap and great. A rare combo these days.
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Reviewed in the United States on January 31, 2026
J
Verified Purchase
JM Rodriguez
Birmingham, US
★★★★★ 5
Great value for dress watch or casual use
Color: Silver/Black/Gold, Color: Silver/Black/Gold
Amazing piece for the price. Had many compliments from coworkers and family about the watch, a real conversation starter. second hand is on point and even with big wrist it suits me well
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Reviewed in the United States on April 23, 2026
C
Verified Purchase
Crisis Doc
Grantham, US
★★★★★ 5
Great quartz Datejust alternative!
Color: Silver/Black/Gold, Color: Silver/Black/Gold
I was looking for a cheap quartz Datejust alternative and many online reviews suggested this watch. I originally wanted the black and silver version but as prime only had the smoky gray and Gilt indices I went with that, in case it didn't meet expectations and needed an easy return. I needn't have worried. This watch is great! The smoky gray sunburst dial is beautiful (as good as my Aqua Terra), and matches well with the Gilt applied indices and hands and white printing (words and minute ring on border); the Gilt details give it the vintage heritage look that's popular now. It's also very easy to read (as opposed to my silver Omega quartz) and date only (which oddly makes it seem pricier). Lume is fair and present on the hands alone, but better than my Tag Heuer link. The folded bracelet is a little stiff but easy to size (google how to size a folded bracelet and this was about the easiest I've done), good quality and very comfortable. it also has 4 microadjust positions on the clasp. The movenent also hacks. On the wrist, it looks very similar to the datejust but without the heft and probably better sized at 39mm (with 20mm band). The smaller sizing and price also make it a nice alternative to the Tissot gentleman quartz. And the Casio brand makes it probably one of the cooler datejust homages, as its the brand that both hipsters and billionaires wear (per style and value). Downsides are the plated case (not full stainless), folded bracelet (though to be fair Rolex used folded bracelets originally as well) and snap on back, but at $30 can you really complain? And I needn't worry if I accidentally bash it against a doorsill. I'm wearing it already!
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Reviewed in the United States on October 8, 2020
M
Verified Purchase
Maria Arteaga Tirado
Lexington, US
★★★★★ 4
Great quality/ customer support
Color: Silver/Black/Gold
I had to order a replacement because the first box was damaged and had been previously opened. Thankfully it’s was super easy and fast to do, i got the new one and is amazing, its chic and classic. It’s the perfect size for small writs!
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Reviewed in the United States on February 18, 2026

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