Kidde Carbon Monoxide Detector
Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition
at Amazon· sold by 86 Percent Co
#7 by sales rank of the 187 in Air & climate
Above the middle of our record.
Go to Amazon$29.92 is above the middle of our record.
The middle price across the 23 days we have watched it, counting the days a limited-time deal was running, was $27.99. That is $1.93 less than today. It reached $24.99 at least once in that time, and the high was $29.99.
Today's price is $1.93 above its usual $27.99.
This describes the prices we recorded. It is not a forecast of where this one goes next.
Price at AmazonVerified
Price history
One line: the best price any tracked retailer charged, per day.
Price set by a third-party seller, not the retailer itselfLightning or limited-time deal
sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $29.92 | $24.99 on Oct 6 | $29.99 on Oct 9 | $27.99 | $26.73 | 23 |
| Sold by Amazon | — | $25.00 on Sep 28 | $28.11 on Sep 21 | — | $26.11 | 20 |
| Third-party sellers | — | $24.99 on Oct 6 | $29.99 on Oct 9 | — | $27.77 | 23 |
Sales events
Next on the calendar: Black Friday, November 27. We keep checking this price through it and report here what it did.
What our record shows
- $4.93 more than the $24.99 it cost on October 6 — this price went up, not down.
Computed from our own checks at Amazon as of October 10. No line here uses a price a retailer told us about.
Where to buy
- Held for
- changed today
- Their 23-day low
- $24.99
- Checked
- 1h ago
Prices checked at least every 12 hours. “Held for” is how long that retailer has been charging this price. A hidden price is one we cannot re-confirm recently enough to publish.
We earn a commission on purchases. It never affects our rankings.
Tell me when it drops
A notification in this browser when the price falls. No email, no account, nothing to install.
A notification carries a button that stops that alert; blocking notifications for this site in your browser stops them all.
What it is
6 attributes, in the retailer’s own words. We record the prices; these we only pass on.
- Size
- 1 Pack
- Color
- White
- Weight
- 0.71 pounds
- Dimensions
- 4.72 × 2.83 × 2.32 inches
- Model
- KN-COB-DP2
- Released
- May 2025
Cheaper in Air & climate, and what changes
Things we track on the same shelf for at least 10% less than $29.92, with the attributes the retailers describe differently. Their words, not our judgement — we record prices, we do not test products.
Every change we recorded at Amazon
Every row is a price we saw change. We write one only when a price actually moves, so a gap here means the price held.
| When | Price | Change |
|---|---|---|
| · today | $29.92 | −$0.07 |
| · 1d ago | $29.99 | +$5.00 |
| · 4d ago | $24.99 | −$0.11 |
| · 4d ago | $25.10 | +$0.10 |
| · 12d ago | $25.00 | −$0.99 |
| · 12d ago | $25.99 | −$2.00 |
5 older changes
| When | Price | Change |
|---|---|---|
| · 18d ago | $27.99 | −$0.12 |
| · 19d ago | $28.11 | +$0.12 |
| · 20d ago | $27.99 | +$1.00 |
| · 20d ago | $26.99 | −$1.00 |
| · 22d ago | $27.99 | first seen |
Others we track in Air & climate
See all Air & climate prices
KiddeCarbon Monoxide Detector, AA Battery Powered, Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition$23.47 · low $18.901 retailer · 3 recorded prices
DREO3L Humidifiers for Bedroom, 30H Runtime, 26 dB Quiet, New Edition$29.901 retailer · 3 recorded prices
HomvanaTop-Fill Cool Mist Humidifiers for Bedroom, Large Room(3.6L, Grey)$29.97 · low $28.471 retailer · 3 recorded prices
LaskoOscillating Pedestal Fan - Adjustable to 47" - 2520 - White$29.981 retailer · 1 recorded price
SomovWorldPortable Air Conditioners, Air Cooler Evaporative Personal Mini AC, Portable AC for Room, Car, Bedroom, Office, Outdoor-WHITE$29.981 retailer · 3 recorded prices
zemeolloAir Quality Monitor Indoor, 10-in 1 Smart Air Quality Tester$29.98 · low $23.981 retailer · 3 recorded prices
$29.92
at Amazon · we earn a commission