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Alarms: what should you pay?
What you'll usually pay
$48.98 typical price
Most are between$17–$250
Brand new$40.23
Used$69.17
On sale now5,432
💡 Used ones cost about 72% more here.
💚 Best value for your money
Unbranded 224 on sale$34.94 · 29% cheaper
TNT 142 on sale$42.69 · 13% cheaper
Not Specified 3,735 on sale$47.23 · 4% cheaper
Price by brand
🛒 Some on sale right now
How we got these numbers
Worked out from 200 live eBay listings (price range $17–$250, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 15, 2026.