Skip to content
Industrial Safety Equipment & PPE β€” ANSI/OSHA Compliant
Industrial Safety Equipment & PPE β€” ANSI/OSHA Compliant
Home β€Ί Carbon Monoxide β€Ί Kidde KN-COB-LP2 Battery-Operated Carbon Monoxi...

Kidde KN-COB-LP2 Battery-Operated Carbon Monoxide Alarm

Kidde SKU: KN-COB-LP2 Carbon Monoxide Alarm GTIN: 047871335091
β˜… β˜… β˜… β˜… β˜… 4.8
$23.97
Final price set by Amazon Β· may vary

Kidde KN-COB-LP2 Battery-Operated CO Alarm: At a Glance The Kidde KN-COB-LP2 is a reliable, battery-operated carbon monoxide alarm designed for straightforward, installation-free CO detection in residential, rental, a...

Key Features
  • Battery powered β€” no outlet required
  • 85 dB alarm with visual LED alert
  • Test/reset button
  • Wall-mount or tabletop installation
  • UL 2034 listed
  • Low-battery warning indicator
Check Price on Amazon

πŸ”’ Amazon Associate Β· You pay the same price Β· We earn a small commission

Zero Sponsored ListingsNo paid placements. Every recommendation is based on compliance, build quality, and field performance.
Curated SelectionExpert-chosen safety gear
Independently ReviewedUnbiased assessments β€” no manufacturer input
Built for Industrial BuyersSourced and reviewed for safety managers, procurement teams, and field supervisors.
battery-powered carbon-monoxide-alarm CO detector home safety Kidde

Kidde KN-COB-LP2 Battery-Operated CO Alarm: At a Glance

The Kidde KN-COB-LP2 is a reliable, battery-operated carbon monoxide alarm designed for straightforward, installation-free CO detection in residential, rental, and light commercial settings. Powered entirely by batteries with no AC wiring required, the KN-COB-LP2 can be placed anywhere in a facility β€” mounted on a wall, set on a shelf, or deployed in areas without convenient electrical outlets. UL 2034 listed and manufactured by Kidde, a Carrier company and globally recognized leader in fire and CO safety, the KN-COB-LP2 delivers dependable protection powered by trusted detection technology. For safety managers, property owners, and procurement teams seeking a cost-effective, highly portable CO alarm that meets code requirements without installation complexity, the KN-COB-LP2 is a practical and proven choice.

  • Power: Battery-operated (no AC power or wiring required)
  • Installation: No tools or electrician needed
  • Certification: UL 2034 listed
  • Sensor: Electrochemical CO detection
  • SKU: KN-COB-LP2

Why Choose the Kidde KN-COB-LP2?

Not every CO alarm application demands digital displays, interconnect networking, or AC hardwired power. For many facilities, the fundamental need is straightforward: a reliable, UL-listed CO alarm that sounds when dangerous CO levels are detected, operates independently of building power systems, and can be installed without scheduling electrical work. The KN-COB-LP2 fulfills this need with Kidde's proven electrochemical sensor technology, industry-recognized reliability, and a form factor that works in virtually any location.

Battery operation is a genuine advantage in specific safety scenarios. Rental properties between tenancies, seasonal facilities in off-months, construction sites without temporary power, emergency preparedness kits, and backup protection for facilities with primary hardwired systems β€” all benefit from a battery CO alarm that requires no infrastructure. The KN-COB-LP2's low battery indicator ensures users always know when replacement is needed, and Kidde's sensor technology delivers the same detection accuracy that safety professionals trust across the product line. For procurement teams buying in volume for property portfolios, facility inventory programs, or tenant safety kits, the KN-COB-LP2 offers efficient value with no installation overhead.

Key Features

  • Battery-operated β€” fully portable, no AC power or wiring required
  • UL 2034 listed for compliance with U.S. commercial and residential CO alarm standards
  • Electrochemical sensor technology for accurate, stable CO detection
  • Low battery indicator alerts when replacement batteries are needed
  • Test/reset button for routine safety inspection and compliance verification
  • 85 dB audible alarm for clear occupant notification
  • End-of-life alert when unit requires replacement
  • Freestanding or wall-mountable for flexible placement
  • Compact form factor suitable for residential and light commercial environments
  • Meets OSHA workplace safety guidelines for CO detection
  • Compatible with NFPA 720 requirements for CO detection in residential and commercial occupancies
  • Manufactured by Kidde, a Carrier company with a global reputation for safety excellence

Real-World Benefits

For residential property managers and landlords, the KN-COB-LP2 provides a code-compliant CO detection option that can be deployed in any unit, regardless of electrical configuration, without requiring a licensed electrician. In states and municipalities where CO alarms are mandatory in rental housing β€” an increasingly common requirement β€” the KN-COB-LP2 allows rapid, consistent deployment across entire property portfolios. Battery independence means the alarm remains active even if a tenant disconnects utilities or if the building experiences a power outage.

Safety supply managers maintaining inventory for institutional programs, emergency response kits, or facility maintenance teams value the KN-COB-LP2's simplicity. There are no compatibility concerns with electrical systems, no outlet location constraints, and no need for specialized installation personnel. Units can be distributed to department heads, kept in safety kits, or deployed quickly in response to identified CO risk areas without planning delays. The low battery indicator supports scheduled battery checks during routine safety inspections, maintaining a verifiable maintenance record for compliance purposes.

For smaller organizations and individual business owners, the KN-COB-LP2 provides entry-level access to Kidde's professional-grade CO detection technology at a practical price point. Whether protecting a small office with a gas water heater, a workshop with propane equipment, or a studio with a combustion heating system, the KN-COB-LP2 delivers the fundamental CO alarm capability required by code and expected by occupants, insurers, and safety inspectors.

Applications and Ideal Use Cases

The Kidde KN-COB-LP2 is well-suited for any application requiring reliable, code-compliant CO detection without AC power dependency. Typical use cases include residential rental units, vacation and short-term rental properties, seasonal and remote facilities, construction site trailers and temporary structures, emergency preparedness and disaster response kits, supplemental protection in facilities with primary hardwired systems, small offices and retail spaces with gas appliances, storage facilities and workshops, and tenant move-in safety kits for property management programs.

Product Specifications

Spec Detail
SKU / Model KN-COB-LP2
Brand Kidde (a Carrier company)
Power Source Battery-operated
Display None (alarm only)
Interconnect No
Sensor Technology Electrochemical
Certification UL 2034
Alarm Sound Level 85 dB at 10 feet
Operating Temperature 40Β°F–100Β°F (4.4Β°C–37.8Β°C)
Mounting Freestanding or wall mount

Related Products and Resources

Frequently Asked Questions

Is the KN-COB-LP2 UL 2034 listed?

Yes. The KN-COB-LP2 is UL 2034 listed, meeting the recognized U.S. standard for single- and multiple-station CO alarms. It is compliant with NFPA 720 and accepted under the International Fire Code for use in residential and commercial occupancies requiring CO detection.

Does the KN-COB-LP2 have a digital display?

No. The KN-COB-LP2 is an audible alarm-only unit without a digital CO concentration display. If real-time PPM monitoring is required, consider the Kidde KN-COB-B-LPM or KN-COB-B-LP, which include digital displays.

How long do batteries last in the KN-COB-LP2?

Battery life in CO alarms typically ranges from one to three years depending on battery type and operating conditions. The KN-COB-LP2 includes a low battery indicator that provides advance warning when replacement is needed. WC Safety recommends testing the alarm and checking battery status during routine facility safety inspections.

Can the KN-COB-LP2 be wall-mounted?

Yes. The KN-COB-LP2 can be mounted on a wall or placed freestanding on a flat surface. Wall mounting is generally preferred for permanent installations to keep the unit in a fixed, easily inspected location. Refer to the included instructions for mounting bracket installation.

Is the KN-COB-LP2 available for bulk purchase?

Yes. WC Safety supports bulk and volume purchasing for property managers, facilities teams, and institutional safety programs. Contact us for quantity pricing, shipping options, and procurement support for large-scale CO alarm deployments.

When should the KN-COB-LP2 be replaced?

Kidde recommends replacing CO alarms every 5–7 years. The KN-COB-LP2 includes an end-of-life signal to alert users when replacement is required. Always document installation dates as part of your facility's safety management records to track replacement schedules proactively.

Brand / Vendor
Kidde
Model / SKU
KN-COB-LP2
Product Type
Carbon Monoxide Alarm
Condition
New
Price
$23.97 (Amazon)
Rating
4.8 / 5 β€” reviews
Availability
βœ“ In Stock on Amazon
🏷️
No Paid Placements
Every product earns its place based on safety credentials and field performance, not advertising spend.
🏭
Industrial Grade Only
Products sourced for professional use in manufacturing, construction, and industrial environments.
πŸ”¬
Compliance Verified
Every product listed on WC Safety is reviewed for standards compliance and safety credentials before publication.
🏭
Sourced for Professionals
Gear selected for safety managers, procurement teams, and field supervisors β€” not casual consumers.
Verified Buyer Reviews

Customer Reviews

β˜…β˜…β˜…β˜…β˜…4.8 / 5Β· 1,461 ratings on Amazon
β˜…β˜…β˜…β˜…β˜…
Top-notch in every way
Perfect travel companion and home safety deviceI bought this Kidde CO detector for peace of mind during hotel stays and road trips. It's compact and runs on two AA batteries, making it truly portable. The 85 dB alarm is loud enough to wake me from a deep sleep. I appreciate the LED status indicators that show normal operation or alarm condition. During a recent power outage, it kept working without issue.Pros: portable, battery-powered, reliable sensitivity, easy to mount or stand. Cons: no digital display for exact CO levels, but for a travel model that's acceptable.Overall, this is a must-have for anyone who stays in hotels or wants backup protection at home. I highly recommend it for its simplicity and effectiveness.
Verified Purchaser Β· May 25, 20 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Works as it should! Highly recommend!
Works as it should without issues. Tested upon receipt and no issues. Easy to set up and set in use. Good value for money. Compact enough to take when you travel, too. Can be set on a table or hung on a wall with attached screws and anchors. Highly recommend it!
Verified Purchaser Β· April 1, 2 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
awesome
I purchased this as a gift and it was a good value for my money. The instructions were easy to follow and can be moved from place to place as needed. It appears to be reliable and good battery life. Very limited noise. The person who received the gift loved it and glad they received it.
Verified Purchaser Β· April 4, 2 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Kidde carbon monoxide detector
I’m very happy with my carbon monoxide detector. I put it on my kitchen counter next to the stove and so far I’m happy with it. It’s flashes a green light to let you know that it’s working thank God I hope I never have to hear it go off, but I would highly recommend it for anyone who doesn’t have the space to plug it in. It is portable. You can put it anywhere. it does require two AA batteries.Too soon to tell how long the battery life is, but I’ll do a follow up on that sometime in the future
Verified Purchaser Β· June 11, 2 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Excellent value
Easy install and works great!
Verified Purchaser Β· May 30, 20 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜†
Worth buying.
Ordinary and functional, easy to set up.
Verified Purchaser Β· March 7, 2 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Long lasting and reliable
This is only the second time I have had to buy one of these in the 10 years I have been in my house. I am buying the exact same one again because it lasts so long. It’s not very big so it’s easy to have mounted, or just sitting on a shelf. I knew it was time to buy a new one because it chirps when the device needs to be replaced. Initially I thought it needed new batteries, but after replacing them and still hearing a chirp, I looked it up. Highly recommend this.
Verified Purchaser Β· May 25, 20 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Very reliable
This is a great detector, it last about 10 years and lets you know when to replace. I replaced mine with a new one of the same brand when it was time.
Verified Purchaser Β· May 2, 202 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Good Value for Peace of Mind
My oil-fired boiler in the basement is the only potential source of carbon monoxide in my house. The old monitor was in use for over 25 years, so I figured it was past due (probably long past due) for replacement, and I was hoping that when I powered it up it wouldn’t start beeping right away. The good news is that it hasn’t made a peep. The entire process of opening the package, inserting the included batteries (two AAA’s), testing it and setting it on top of my indirect water heater took less than 3 minutes. I plan on this being the last one I buy.
Verified Purchaser Β· June 15, 2 Β· βœ“ Amazon Verified Purchase
β˜…β˜…β˜…β˜…β˜…
Sleep well with Kidde detectors
My first two Kidde units lasted 10 years and never gave a false alarm. Batteries seem to last forever. When you trust your life to a CO detector, don't Kidde around, get a Kidde ... or two. I just bought two more, so I'm good for another decade!
Verified Purchaser Β· June 11, 2 Β· βœ“ Amazon Verified Purchase
Showing 10 of 1,461 Amazon reviews.
Share Your Experience

Write a Review

Select a rating
βœ“

Thank you for your review!

Your submission has been received and will be published after verification.

Kidde KN-COB-LP2 Battery-Operated Carbon Monoxide Alarm