Emarter
Kidde Kn Cosm Iba Hardwire Combination Interconnectable
$109.95
Price accurate as of Jul 26, 2026. Check current price on Amazon.
See Price on AmazonThis Kidde Kn item is priced 31% above the 414,308-product Tools & Home Improvement average of $84.08, and rated above the category's 4.4-star average.
Key Features
- Fire & CO Detector in 1 unit with alert modes, LED lights, & voice alarm, that states, "Fire! Fire!", "Warning! Carbon Monoxide!", or "Low Battery!" Ionization sensing technology - hardwired smoke detector detects invisible fire particles, 85 decibel alarm alerts of fire Protects during a power failure - combo smoke and CO detector operates on a 120VAC power source with 2-AA battery backup Test-Hush Feature - silences the unit for approximately 9 minutes; tamper-resistant technology deters removal of the unit from the wall or ceiling UL Certified, 10-year limited warranty Interconnects: Up to 24 Kidde devices (of which 18 can be initiating) Meets safety standards set by Underwriters Laboratories (UL) and interconnects with other KN-COSM-IBA models 120V AC, All Kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IBA
Specifications
| Brand | Kidde Kn |
|---|---|
| Category | Tools & Home Improvement |
| Subcategory | Safety & Security > Fire Safety > Carbon Monoxide Detectors |
| ASIN | B086S4Y9H5 |
| Listed Since | Jul 11, 2026 |
Price History
Checked 18 times, trending flat — a real price history, not a one-time listing.
| Date | Price |
|---|---|
| Jul 26, 2026 | $109.95 |
| Jul 25, 2026 | $109.95 |
| Jul 24, 2026 | $109.95 |
Best-Seller Rank History
Amazon's own sales rank within Tools & Home Improvement, over time.
| Date | Rank |
|---|---|
| Jul 26, 2026 | #2,052 |
| Jul 25, 2026 | #2,052 |
| Jul 24, 2026 | #2,052 |
Common Questions
Is this a good price for Tools & Home Improvement?
At $109.95, this is about 31% above the 414,308-product Tools & Home Improvement average of $84.08.
How well does this sell compared to other Tools & Home Improvement products?
It's ranked #2,052 in Tools & Home Improvement by Amazon's own best-seller rank, and its price has been trending flat over our last 18 price checks.
How reliable is the 4.5 star rating?
It's based on 11,448 Amazon reviews, compared to a Tools & Home Improvement category average of 4.4 stars.
