Kidde Carbon Monoxide Detector, AA Battery Powered
Portable for Travel or Home, 85 dB Alarm, LED Status Indicators, 3rd Edition
Price went up recentlyRose from $19.89 to $23.47 on October 9.
at Amazon
#4 by sales rank of the 187 in Air & climate
Above the middle of our record.
Go to Amazon$23.47 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 $19.89. That is $3.58 less than today. It reached $18.90 at least once in that time, and the high was $23.47.
Today's price is $3.58 above its usual $19.89.
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.
sales rank — the line rises as it sells moreShaded stretches are sales, from our calendar.
| Price | Now | Lowest | Highest | Usual | Average | Days recorded |
|---|---|---|---|---|---|---|
| New | $23.47 | $18.90 on Sep 18 | $23.47 on Oct 9 | $19.89 | $20.03 | 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
- $3.58 more than the $19.89 it cost on September 22 — 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
- 1d
- Their 23-day low
- $18.90
- Checked
- 4h 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
- 0.23 pounds
- Dimensions
- 4.72 × 2.83 × 1.65 inches
- Model
- KN-COB-LP2
- Released
- May 2025
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 |
|---|---|---|
| · 1d ago | $23.47 | +$3.58 |
| · 18d ago | $19.89 | +$0.99 |
| · 22d ago | $18.90 | first seen |
Others we track in Air & climate
See all Air & climate prices
KiddeCarbon Monoxide Detector, Plug-in Carbon Monoxide Detector with AA Battery Backup, 85 dB Alarm, LED Status Light Indicators, 3rd Edition$29.92 · low $24.991 retailer · 11 recorded prices
MEGAWISE1.5L Quiet Cool Mist Humidifier, 25dB, Portable for Bedroom$22.99 · low $18.991 retailer · 6 recorded prices
BLACK+DECKERPersonal Ceramic Heater, 1500 Watts, BHDC201, Black$22.991 retailer · 1 recorded price
Rosekm2L Cool Mist Humidifier for Bedroom and Plants, Quiet, Black$23.991 retailer · 1 recorded price
FULMINAREAir Purifiers for Bedroom, FULMINARE H13 True HEPA Filter$22.49 · low $21.371 retailer · 4 recorded prices
BLACK+DECKER9-Inch Frameless Box Fan, 3-Speed Settings, BFB09W, White$22.491 retailer · 3 recorded prices
$23.47
at Amazon · we earn a commission