Kidde Hardwired Smoke & Carbon Monoxide Detector
Battery Backup, Interconnectable, LED Warning Light Indicators
Price as of 2026-06-05. Check Amazon for the current price.
Quick Decision
Price Intelligence
Currently $108.99 — the 90-day average is $45.40.
All-time low: $32.30 on Sat Aug 20 (from 182 price checks).
Is This Right For You?
- •Buyers who prioritize quality over price in Carbon Monoxide Detectors
- •Risk-averse buyers — 11,479+ reviews give a highly reliable picture
- •Kidde loyalists — the brand spans 155 products in our database
- •You're on a tight budget — $45 above the category average of $64
- •Kidde Carbon Monoxide Detector offers a better rating (4.7/5) at a similar or lower price ($44)
- •Kidde Carbon Monoxide Detector — 60% cheaper at $44 (Score A)
📊 Based on data analysis of 53 products in this category.
Mubboo Score: B
How It Compares
This Product Kidde Hardwired Smoke & Carbon Monoxide Detector | Most Popular Kidde Carbon Monoxide Detector | Best Rated First Alert Combination Explosive Gas and Carbon Monoxide Alarm | Best Value Kidde Carbon Monoxide Detector | |
|---|---|---|---|---|
| Price | $108.99 | $43.97 | $50.45 | $48.12 |
| Rating | 4.6/5 | 4.7/5 | 4.4/5 | 4.6/5 |
| Reviews | 11,479 | 27,202 | 996 | 1,335 |
| Mubboo Score | B | A | B- | B |
Quick Specs
- Alarm
- Audible
- Color
- White
- Style
- Previous Model
- Unit Count
- 1.0 Count
- Item Weight
- 15.2 ounces
- Sensor Type
- Ionization
- Manufacturer
- Kidde Safety
- Model Number
- Firex-CUACFEX-V-20-9003
What People Say
Synthesized from 40 reviews · 100% verified purchases.
Choose a model with a digital display if you want to see real-time CO levels. Note that the low-battery chirp can be mistaken for a smoke detector, so test early; also remember these need replacement after 10 years.
- Plug-and-Play Installation
- Peace of Mind & Reliable Protection
- Battery Backup for Outages
- Loud Alarm for Safety
- Portable for Travel
- No Digital Display on Basic Units
- Low-Battery Chirp Resembles Smoke Detector
Expert Picks in Carbon Monoxide Detectors
- Kidde Smart Smoke + Carbon Monoxide Alarm — Best smart smoke alarm
- First Alert SC5 Hardwire Smart Smoke and CO Alarm — Works with Nest Protect units
- Kidde Ring Smart Smoke + Carbon Monoxide Alarm — Ring alarm users
Category recommendations from independent expert publications. Source links in References.
Related Video Reviews
- 📹 What Most Homeowners Don’t Know About Carbon Monoxide Detectors — The DIY HVAC Guy
- 📹 Best Carbon Monoxide Detectors in 2026 — wiredtech
- 📹 7 Best Carbon Monoxide Detector 2026! Tested & Tried — Everything Under Control
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
Source: product listing on Amazon.
About Kidde
- 155 products in our database
- Average rating: 4.6/5 across all products
- Price range: $12.87 – $381.75
- Categories: Carbon Monoxide Detectors, Fire Extinguishers, Smoke Detectors
Other Carbon Monoxide Detectors
Featured in Our Reviews
Bottom Line
Kidde Hardwired Smoke & Carbon Monoxide Detector earns Mubboo Score B. At $109 it's above the 90-day average of $45 — waiting for a dip may pay off. Rated 4.6/5 from 11,479+ reviews. Strong buy if: buyers who prioritize quality over price in carbon monoxide detectors, risk-averse buyers. Skip if: you're on a tight budget — Kidde Carbon Monoxide Detector (Score A, $44) may fit better.
Frequently Asked Questions
Is the Kidde Hardwired Smoke & Carbon Monoxide Detector worth buying in 2026?
It earns a Mubboo Score of B, with a 4.6/5 rating from 11,479 reviews — better than 60% of Carbon Monoxide Detectors we track.
How much does the Kidde Hardwired Smoke & Carbon Monoxide Detector cost?
It is currently $108.99. The 90-day average is $45.40 and the all-time low we recorded is $32.30.
How does the Hardwired Smoke & Carbon Monoxide Detector compare to other Carbon Monoxide Detectors?
The category's most-reviewed alternative is the Kidde Carbon Monoxide Detector (4.7/5, 27,202 reviews, $43.97). The Hardwired Smoke & Carbon Monoxide Detector carries a Mubboo Score of B vs A.
Sources & References
Mubboo may earn a commission from purchases made through links on this page. Prices and availability are accurate as of the last sync (2026-06-05) and may change.