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Anti-Theft Car Alarms: what should you pay?

What you'll usually pay

$44.99 typical price

Most are between$6–$201

Brand new$26.13

Used$33.85

On sale now11,055

💡 Used ones cost about 30% more here.

💚 Best value for your money

Red 82 on sale$17.72 · 61% cheaper

Unbranded 837 on sale$25.29 · 44% cheaper

Blue 71 on sale$26.99 · 40% cheaper

Alarm Sensor 949 on sale$27.19 · 40% cheaper

Horn 1,302 on sale$26.99 · 40% cheaper

Price by brand

Unbranded

$25.29-44%

Audi

$29.99-33%

BMW

$29.95-33%

General Motors

$107+138%

ACDelco

$138+208%

Price by color

Red

$17.72-61%

Blue

$26.99-40%

Black

$30-33%

Silver

$30.94-31%

Not Specified

$37.95-16%

Price by features

Alarm Sensor

$27.19-40%

Horn

$26.99-40%

Not Specified

$37.95-16%

Siren

$40.45-10%

Keyless Entry

$42.55-5%

Immobiliser

$44.61-1%

Price by warranty

Unspecified Length

$39.95-11%

No Warranty

$41.8-7%

90 Day

$45.65+1%

Lifetime

$52.46+17%

1 Year

$89.51+99%

2 Year

$125+177%

🛒 Some on sale right now

How we got these numbers

Worked out from 200 live eBay listings (price range $6–$201, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 15, 2026.