A Kidde 30CUAR-V smoke co detector sells for about $38 on eBay, from 95 sales between Jun 11, 2026 and Oct 15, 2026. Most sell for $31.48 to $39.99. Used ones bring $37, new ones $39.99. At local online auctions it has gone for $20.50.
$38eBay sold, middle price
$31.48 to $39.99typical range (middle half)
$37used, 53 sales
$39.99new, 42 sales
$20.50local auctions, 2 closed
76sold in the last 90 days
What it goes for, whereLocal auction, eBay new and used, and what you keep after every fee.
Every eBay sale over time95 sales, Jun 11, 2026 to Oct 15, 2026. Tap a dot for its price.
4 sales above $80 drawn at the top edge. 1 older sale before Jul 15 not drawn (in the numbers below).
See the numbers
Month
Sales
Middle price
Jun 2026
1
$39.95
Jul 2026
12
$39.25
Aug 2026
25
$38
Sep 2026
28
$38
Oct 2026
29
$35.10
Where the prices fallThe shaded band is the middle half of sales: $31.48 to $39.99.
The flip math
What one Kidde 30CUAR-V is worth to a reseller, line by line.
Sell one on eBay
Sale price (low end of typical sales)$31.48
eBay fees (13.6% + $0.40)−$4.68
Shipping it to the buyer−$10
Returns and duds buffer (15%)−$2.52
You keep$14.28
Buy one at a local auction for the typical $20.50
Winning bid$20.50
Buyer's premium (18%)+$3.69
Sales tax (9%)+$2.18
Lot fee+$2
You pay$28.37
Cash in hand (keep − pay)−$14.09
To keep at least 2 times what you pay, bid no more than $4. Above $9.55 you lose money after every fee. Run your own numbers.
Local auction prices
2 single Kidde 30CUAR-V lots closed at Kansas and Missouri online auctions we track, at a middle winning bid of $20.50.
Closed
Winning bid
Oct 20, 2026
$20
Oct 20, 2026
$21
Selling notes
55% of sales shipped free; the rest charged a middle $8.27 for shipping.
32% sold through Best Offer, where the real price can be lower than shown.
The last 60 days are down 10% against the 4 months before.
22 sold in the last 30 days, 76 in the last 90.
Questions
How much is a used Kidde 30CUAR-V smoke co detector worth?
About $37 on eBay, the middle of 53 used sales between Jun 11, 2026 and Oct 15, 2026. Most used ones sell for $31.48 to $39.99 once new ones are counted too.
What does a new Kidde 30CUAR-V smoke co detector sell for?
New ones sold for a middle price of $39.99 across 42 eBay sales.
How fast does a Kidde 30CUAR-V sell?
22 sold on eBay in the last 30 days and 76 in the last 90. Prices are down 10% against the months before. 55% of sales came with free shipping.
What does a Kidde 30CUAR-V go for at auction?
At the Kansas and Missouri online auctions we track, 2 single Kidde 30CUAR-V lots closed at a middle winning bid of $20.50, against $38 on eBay.
Is a Kidde 30CUAR-V worth flipping?
Sold at $31.48 on eBay you keep about $14.28 after fees, shipping and a returns buffer. To double your money, pay no more than $4 as a winning bid with an 18% premium and 9% tax.
95 eBay sales of the Kidde 30CUAR-V from Jun 11, 2026 to Oct 15, 2026, each one checked to be this model (at least half name it in the listing; the rest match it closely).
eBay prices are completed sales (what buyers paid), not asking prices, from our sold-data provider. We keep only sales of the same product: parts, accessories, bundles and look-alikes are dropped before anything is counted.
Local auction prices are winning bids on single-item lots at the Kansas and Missouri online auctions we track (HiBid and Equip-Bid sellers), read by our own lot reader. Lots of several units are left out.
The money math uses our standard costs: 18% buyer's premium, 9% sales tax, a $2.00 lot fee, eBay's 13.6% + $0.40 fee, shipping at cost (never counted as profit) and a 15% buffer for returns and duds. Members set their own.