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Kidde 900-0234 Nighthawk Carbon Monoxide Alarm, Long Life AC Powered with Battery Backup and Digital Display | 
| Brand: Kidde
Category: Home Improvement
List Price: $96.99
Buy New: $39.49
as of 9/8/2010 20:46 CDT details
You Save: $57.50 (59%)
Seller: Closeouts America
Rating:  20 reviews
Sales Rank: 1834
Media: Tools & Hardware
Batteries Included: Yes
Shipping Weight (lbs): 1.9
Dimensions (in): 12.1 x 7.6 x 0.8
MPN: 21007309
Model: 900-0234
UPC: 047871073092
EAN: 0047871073092
ASIN: B001LF2L0U
Availability: Usually ships in 1-2 business days
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| Features:
| | Digital display shows the level of carbon monoxide the unit is sensing so the unit updates this reading every 15-seconds | | | Peak level button displays the peak CO level recorded by the alarm since it was last reset or unplugged | | | 9-Volt battery backup provides continuous protection even during power outages | | | Tamper resist feature unit goes into constant alarm mode if it has been unplugged or has come loose from the outlet | | | 7-year end of life warning alerts user to replace CO alarm after 7-years of operation (40-percent longer than other CO alarms) |
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| Editorial Reviews:
Product Description
The Nighthawk, AC Powered, Plug-In Carbon Monoxide Alarm With Battery Backup, Easy To Install, Provides Reliable Protection Against The Dangers Of Carbon Monoxide, Written Information & Instruction, Operation Easy To Understand, AC/DC Basic Alarm Has A Small Sleek Design That Is Suitable For All Living Areas & Has A 7 Year Limited Warranty.
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
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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. |
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| Customer Reviews:
Showing reviews 1-5 of 20
 No problems after 6 months July 23, 2010
G. Ware (Colorado USA)
1 out of 1 found this review helpful
I have had this unit in our bedroom for over 6 months with no issues. No false alarms and no backup batter issues, it just works or at least the display tells me so. I do like the display on these units rather then just a status light like other lower priced models. If you are looking for a higher quality carbon monoxide detector then I would sure take a look at this unit. I have had other Kidde Nighthawks with no problems as well. Just remember that after a number of years all detectors are no longer good and need to be replaced.
 Waste of money July 18, 2010
EEMueller
1 out of 2 found this review helpful
I purchased this unit as a backup to the gas and CO detectors that are wired into my central alarm system. In the 5 months that I've had this unit installed, it has false alarmed 4 times, each time indicating explosive gas. The last one was last night with a house full of guests. The other detector sensed nothing, and after reading some reviews, I found this type of failure with Kidde alarms is very common. This beauty is headed straight for the trash.
good CO detector, like the digital display and battery-backup July 11, 2010
Jiminy Cricket (downstate NY USA)
1 out of 1 found this review helpful
Both 2 of these to replace my 7-year-old Kidde CO detectors of a similar model, one per floor. They plug into any wall outet. I like the battery-backup and the digital CO level display. If you press a button, you can see "peak" CO level since the last reset. Am using these peak level readings to try to track down occasional very low levels of CO that are too low to be dangerous or trigger any alarm. I am pleased with these CO detectors. My only complaint is that I wish I could see the instantaneous low level CO readings [but such pro CO detectors normally cost much more].
One important point. There is something you have to do to prevent the unit from beeping every minute on battery backup if the AC power goes out. Follow the instructions to do that and you will like this unit much better as a result.
Good Product June 1, 2010
horsey girl
1 out of 1 found this review helpful
This is the first carbon monoxide detector I have ever purchased so I don't have any other experiences to compare it to. I've had it for a week and it seems to be working just fine. I really like the digital display that indicates "0" so I know that there is no carbon monoxide at all in the home. I'm assuming this is an accurate reading. (Hopefully!). It does seem like it is a quality product. I did use the test option to see if that worked and it did exactly what it was supposed to do.
I did take one star off because of the ear-splitting noise you have to deal with when you put the battery in and also if you unplug the thing from the wall. I nearly jumped out of my skin! As soon as you install the battery---Be prepared for the noise!! You will want to hold the button in the back---walk it over to the wall--and plug it in immediately.
I would recommend this product.
alerts at the 7-year mark, noisy unless you disable tamper-proof feature March 28, 2010
Omar Siddique (Ellicott City, MD USA)
3 out of 3 found this review helpful
Long-lived CO alarm requires replacement at the 7-year mark, and has an annoying tamper-resistant feature (but it can be turned off).
After learning that home carbon-monoxide sensors have a finite lifespan, I decided to replace my oldest Nighthawk (well past its "expiration" as far as I can tell), with one of this new product line that is supposed to be effective for longer.
I found a few interesting differences between this new model and my older ones. One is that while this model is rated to last 7 years, it actually has planned obsolescence-- at the 7 year mark (from 1st power-up), it begins to chirp every 15 seconds. That means in 7 years, you must replace or discard the unit. Since I doubt the sensor completely fails between 6yrs364days and 7yrs, this seems like an attempt by Kidde to ensure sales volume (or to reduce liability by picking a "safe" cut-off). I'd have been happier with the ability to either service the unit (replace the sensor rather than discard the whole), or just have a "replace unit" warning light. I'd think it better to have a unit working with diminished capability, than to have no unit at all.
There are also alarms tied to the unit receiving AC power, with the unit sounding a loud tamper-warning otherwise. Eg, once the unit has a battery in it and is plugged in, if you were to simply unplug the unit, it would sound a very loud, persistent alarm. So to move it, you have to hold down the test button for 2-seconds first, to get a 2-minute unplugged grace period before the tamper-siren sounds.
I'm not sure if this feature is aimed at consumers with small misbehaved children, or aimed at those paranoid about malicious actions, but it seems out of place in an adults-only household. Reading the manual, I did discover that this feature can be disabled (hold down the button on the back, and use a screwdriver to slide a recessed switch to a disabled position). I'm glad the "feature" can be disabled, but considering the number of reviews here that mention the tamper-alarm, this work-around seems non-obvious.
Like most recent alarm devices, this unit will beep regularly when it has a low battery (a feature not present in my oldest Nighthawk), but thankfully it does have the ability to silence that beeping (for 12 hours) by holding down the test button (since these batteries seem to always fail during the middle of the night).
The manual states that using the recommended brands of 9v batteries, this unit will run on battery-only
for 20 hours.
I haven't had any CO problems, but this unit seems like it'll do the job, but I dock 1-star for overly noisy warnings and planned obsolescence.
Showing reviews 1-5 of 20
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