Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup and Digital Display

by Kidde

Product Description

Amazon.com Product Description

Protect your family from the dangers of carbon monoxide (CO) exposure with the Kidde 900-0234 Nighthawk Carbon Monoxide Alarm with Digital Display. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO, and it has a digital display that shows CO levels in parts per million (ppm), allowing you to see if, how, and when levels change.

900-0234 Nighthawk Carbon Monoxide Alarm At a Glance: Digital display shows CO levels; updates every 15 seconds Peak level button displays the peak CO recorded since alarm was last reset Emits a loud warning signal when dangerous levels of CO are detected Comes with a 9-volt battery Seven-year limited warranty

As sleek as it is safe, this alarm is designed for discreet installation. View larger.

Thanks to its battery backup, this alarm will continue working even if your house loses power. View larger.

About Carbon Monoxide: The Silent Killer
The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses, CO poisoning can often go undiagnosed.

When placed on every level of your home, alarms like the Nighthawk 900-0234 can help protect everyone in the house from CO exposure by giving an unmistakable audible signal when CO levels have reached an unhealthy point.

Easy-to-Read Digital Display Shows CO Levels
Featuring a small, sleek, discreet design that's suitable for all living areas, the Nighthawk 900-0234 is preferred among CO alarms because of its digital display. This display clearly shows current levels of CO--from 30 to 999 ppm--and it updates every 15 seconds, giving you an indication of any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged.

Loud Alerts Signal Elevated Levels and Low Battery Life
The Nighthawk 900-0234 immediately sounds a loud warning signal if CO has reached an elevated, unsafe level in your home, giving you plenty of time to leave the premises. You'll also hear a clearly audible alert when the product is nearing the end of its seven-year life, or the battery needs changing.

Battery Operated for Continuous Monitoring
For added convenience, the Nighthawk 900-0234 also has a battery backup, which means you won't have to worry about power outages. Unlike many A/C units, the Nighthawk will monitor continuously without interruptions. And because it has a seven-year product life, it's able to provide protection up to 40 percent longer than other units.

User-Friendly, Protective Features
For added peace of mind, the Nighthawk 900-0234 has a test/reset button that allows you to verify that the alarm is functioning properly, and a tamper-resistant feature that works by putting the unit into constant alarm mode if it has been unplugged or has come loose from the outlet.

Compliancy and Warranty Information
The Nighthawk 900-0234 is UL listed and is backed by a seven-year limited warranty.

About Kidde: A UTC Fire and Security Brand
Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

What's in the Box
Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, 9-volt battery, mounting hardware, and installation guide.

Keep your family safe by placing alarms and extinguishers in each area of the house, and by having a fire escape plan. Click here for a detailed image.

Product Description

The nighthawk AC powered plug in carbon monoxide alarm has a digital display for ultimate protection of carbon monoxide. The digital displays show carbon monoxide in PPM allowing you to see if the levels are changing. The sleek design makes this alarm suiteable for all living areas. This alarm has a 7 year warranty.

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Product Details

• Product Dimensions: 1.8 x 7.5 x 11 inches
• Shipping Weight: 12 ounces (View shipping rates and policies)
• Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
• ASIN: B001LF2L0U
• Item model number: 21007309
• Average Customer Review: 3.8 out of 5 stars  See all reviews (37 customer reviews)
• Amazon Best Sellers Rank: #795 in Home Improvement (See Top 100 in Home Improvement)
  • #11 in Home Improvement > Safety & Security > Fire Safety > Carbon Monoxide Detectors
  • #33 in Home Improvement > Safety & Security > Household Sensors & Alarms

Customer Reviews

Most Helpful Customer Reviews

96 of 97 people found the following review helpful:

4.0 out of 5 stars Good product, has some plusses over earlier model, one downside, June 1, 2009

By 

Paul Robinson - See all my reviews

Amazon Verified Purchase

This review is from: Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup and Digital Display (Tools & Home Improvement)

Kidde makes good CO detectors. We've had several Nighthawks for years and they've worked well (at least we think so, never had a CO problem). Our previous version was the the COPP-3 (we had a couple of experiences with the low battery chirping-- a nuisance in the middle of the night--and once, it happened again shortly after we had put a new battery in. Others have had many more problems in that regard--see reviews).

It was time to replace them. We first bought 3 Kidde KN-COPP-B Front Load Battery-Operated Carbon Monoxide Alarm with Digital Display--but ran into several problems (see my review). The biggest problem was that Amazon's stock was old (the detectors were over 2 years old) and the warranty was only for 5 years. Other downsides are that they required mounting and were only battery operated! We returned them making use of Amazon's consumer-friendly return policy.

We then bought this model. It has these great features.

1) Comes with a 7-year warranty (new feature, old had 5 years).

2) Shows the CO level continuously. It's reassuring to see the red LED showing 0!

3) Has a well designed, clearly organized printed manual (a small booklet).

4) Operates off of AC with a battery backup. (That's helpful as you have the best of both worlds!)

5) Has peak level button (this is a new feature).

6) Battery included.

A Big Downside:

A big downside is that they eliminated the plug on a cord. That was really helpful as it gives the user real flexibility in where to put the detector. In our bedroom, the only accessible plugs are beside a dresser in a corner or between bookshelves and the TV stand, meaning less air flow. With the old model, you could plug in the device and then with the cord, put the detector on the top of a bookshelf or stand. Much more convenient.

The other problem, which plagues all the CO detectors and many other products on the market, is the infuriating, hard plastic packaging. It's hard to open and I even cut myself on it. There are alternatives that are just as secure but much friendlier to the environment and the customer!

We still have a year or two left on one of our old ones, so we're keeping that. We also bought a First Alert CO615, which does have the cord, and we'll probably move that into our bedroom when the time comes. (But it has more negatives--see review!)

26 of 27 people found the following review helpful:

5.0 out of 5 stars Love the digital readout, November 3, 2009

By 

Michael (Fairfax County, Virginia) - See all my reviews
(VINE VOICE)   

Amazon Verified Purchase

This review is from: Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup and Digital Display (Tools & Home Improvement)

Set up was easy. Love the digital read-out. And I love that in 7 years the unit will tell me it's time to replace it. Nice sticker on the top to write in the date myself too.

My only complaint, if you want to call it that, is that you have to hit the button in the back to kill the sound that you hear continuously if you unplug the unit from the ac. Glad I figured that out before the first power failure or the unit would have gone on and on.

Overall, a great unit at a great price.

20 of 20 people found the following review helpful:

4.0 out of 5 stars Larger than it looks, December 28, 2009

By 

Dobx "Dobx" (Duck, NC, US) - See all my reviews

Amazon Verified Purchase

This review is from: Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup and Digital Display (Tools & Home Improvement)

The alarm on this device could wake the dead. It is larger than it appears, and covers both receptacles. Installing the back-up battery isn't fast--you must unscrew a little screw to get the battery door open, and reinstall it to get the door closed again. Believe the instructions when they tell you to plug it in as soon as the battery is installed to avoid the alarm going off. I didn't time how long before the alarm sounded, but it isn't long at all based on my personal experience. I suggest you install the battery in the room where you are going to install the unit. It is reassuring to see the red zero on the displays. I have two of them, and would buy the product again.