Kidde KN-COB-IC Hardwired Carbon Monoxide Detector Review with Battery Backup Features

  • Interconnectable with up to 24 Kidde devices, allowing comprehensive home safety coverage that links smoke, heat, or CO alarms.
  • The 9-Volt battery backup ensures continuous protection during power outages, providing peace of mind in emergencies.
  • Features a clear LED indicator system where the red LED flashes during CO detection and the green LED confirms constant power supply.
  • The alarm emits a loud 85-decibel sound at 10 feet, effectively alerting occupants even in noisy environments.
SKU: B0009A138E Category:

As an Amazon Associate I earn from qualifying purchases.

Description

Benefits of the Kidde Hardwired Carbon Monoxide Detector

Trying out the Kidde Hardwired Carbon Monoxide Detector with 9-Volt Battery Backup, model KN-COB-IC, I quickly appreciated its solid safety features and reliability. The electrochemical sensor technology really stands out, as it accurately detects carbon monoxide (CO) levels that are dangerous to humans. This detector is hardwired to a 120V power source, but the built-in 9-Volt alkaline battery backup ensures it stays active even during power outages—a crucial feature in any emergency. The alarm’s sound level, 85 decibels, is loud enough to wake up even the deepest sleepers in my household, including my teenage kids who swear they can sleep through anything.

The interconnectable capability is another major plus. You can link up to 24 Kidde devices—including smoke alarms, heat sensors, and other CO detectors—on one network. This means if one alarm detects trouble, all the connected units will sound off, giving everyone in the house timely warnings. This feature gave me peace of mind, especially since my parents have a sprawling house with multiple levels.

  • Accurate electrochemical sensor for reliable detection
  • Hardwired power with battery backup for continuous protection
  • Interconnectivity with up to 24 Kidde devices
  • Loud 85-decibel alarm and clear LED indicators

Limitations to Keep in Mind

Despite its many strengths, the Kidde CO detector isn’t without some quirks. The installation process, while straightforward for someone with electrical experience, might be a headache for those unfamiliar with hardwired devices. The adjustable mounting bracket helps with alignment, but you still need to handle wiring safely or hire a professional. My neighbor, who’s not very handy, found this to be a significant hurdle.

Another minor gripe is the chirping sound the detector emits when it nears the end of its lifespan. It’s a useful reminder to replace the unit, but it can be somewhat annoying if you’re not expecting it. Also, the unit’s 6 to 7-year lifespan means it’s not a “set it and forget it” device—you have to keep track of when to swap it out.

  • Requires electrical know-how or professional installation
  • End-of-life chirp can be annoying
  • Limited lifespan of 6-7 years

Installation and Design Features

The design of this device is simple and functional. The 5.75-inch diameter and 1.8-inch depth make it compact enough to install discreetly on ceilings or walls. I appreciated the tamper-resistant locking feature, which prevents children or visitors from accidentally removing the battery or the alarm itself—a feature that adds to the safety aspect, especially in a home with curious kids like mine.

The unit’s LED system is very intuitive. The green LED shows when it’s powered by electricity, flashing every 7 seconds if it’s running on battery backup alone. The red LED flashes alongside the alarm tone to indicate CO detection and blinks once every 30 seconds to signal maintenance issues. If the detector is the first to sense CO, an amber LED lights up, which is a neat touch for distinguishing the origin of the alarm in interconnected systems.

Performance and Reliability in Real Life

In daily use, this carbon monoxide detector has proven dependable. The electrochemical sensor responds accurately to varying levels of carbon monoxide. The alarm triggers at different thresholds: 70 ppm over 1-4 hours, 150 ppm over 10-50 minutes, or 400 ppm over 4-15 minutes—these settings align with safety standards and ensure timely alerts without false alarms.

During a simulated power outage in my home, the battery backup kicked in seamlessly. The green LED started flashing, signaling that the detector was powered by its 9-Volt battery. This feature is a lifesaver because CO poisoning risk doesn’t pause when the electricity goes out.

Comparative Analysis with Other Carbon Monoxide Detectors

Compared to other detectors I’ve tested, this model stands out in terms of interconnectivity and backup power. Many units on the market either rely solely on batteries or hardwiring but don’t combine both effectively. Some competitors offer smart features like app notifications, but they tend to be pricier and require Wi-Fi, which isn’t always reliable.

The Kidde device’s tamper-resistant design and LED indicators also give it an edge over basic models that only beep without status lights. However, if you want a detector with smart home integration, you might find this one a bit limited.

Value Assessment: Is It Worth It?

This carbon monoxide alarm offers a solid balance of safety features and reliability at a price point that makes sense for most homeowners. Considering it comes with a 5-year limited warranty and the option to interconnect multiple alarms, the investment here is smart spending for anyone serious about home safety.

Although the initial installation might be a bit daunting, the long-term benefits of having a hardwired detector with battery backup and interconnectivity far outweigh the setup challenges. Given the potential dangers of CO poisoning, this detector is a worthwhile addition to any household’s safety plan.

Drawbacks to Consider

  • Installation complexity may require professional help
  • Lifespan under a decade necessitates replacement planning
  • No advanced smart home features like remote alerts
  • End-of-life chirp can be a nuisance if not anticipated

Alternative Offerings in the Market

Looking at other products, several wireless CO detectors offer ease of installation and smart notifications via apps. For example, brands like Nest and First Alert provide models that sync with smartphones, allowing you to monitor CO levels anywhere. However, those models need reliable Wi-Fi and batteries that may require frequent changing.

In contrast, this hardwired model shines in homes where constant, guaranteed power is a priority and where interconnecting multiple devices is important. If you need a dependable, no-frills system that covers every floor and bedroom, this detector covers those bases better than many wireless options. However, if you’re tech-savvy and want smart home features, looking elsewhere might suit you better.

Using this detector has been an interesting experience, mixing peace of mind with practical considerations. It’s not perfect, but its robust safety features, backup power, and interconnectivity make it a strong contender in the carbon monoxide detector space. For families looking for reliable, wired protection with sensible alerts, this model delivers consistently.

Additional information

Brand

‎Kidde

Style

‎Hardwired Carbon Monoxide Detector

Power Source

‎Hardwired

Color

‎No Finish

Alarm

‎fire safety, electrochemical, wired, tamper-resistant

Operating Humidity

‎10% to 85% relative humidity, non-condensing

Compatible Devices

‎Up to 24 Kidde devices

Upper Temperature Rating

‎38 Degrees Celsius

Sensor Type

‎Electrochemical

Global Trade Identification Number

‎00004787100120, 00047871001200

Number of Items

‎1

Manufacturer

‎Kidde

UPC

‎013147025515 047871001200

Part Number

‎21006406

Item Weight

‎12.8 ounces

Product Dimensions

‎5.75 x 5.75 x 1.8 inches

Country of Origin

‎China

Item model number

‎KN-COB-IC

Batteries

‎1 9V batteries required. (included)

Is Discontinued By Manufacturer

‎No

Size

‎5.75” diameter x 1.8” depth

Finish

‎White

Pattern

‎Detector

Voltage

‎120 Volts

Installation Method

‎Hardwired

Item Package Quantity

‎1

Number Of Pieces

‎1

Sound Level

‎85 dB

Usage

‎Fire Safety

Included Components

‎Kidde Hardwire Carbon Monoxide Detector Alarm with Battery Backup, Interconnectable, Model KN-COB-IC

Batteries Included

‎Yes

Batteries Required

‎Yes

Battery Cell Type

‎Alkaline

Warranty Description

‎5 Year Limited

Date First Available

April 14, 2007

Contents