Car Alarm Pricing Trends
Analysis of 18,353 eBay listings for car alarms and security systems.
What you'll usually pay
💡 Buying used saves about 18% here.
👉 In short easy summary
The market median is 36.26, but specialized systems command a significant premium. High-end features like 2-Way Paging increase the median to 88.62, a 144% delta over the baseline.
Price by brand
Why? Prices vary by manufacturer reputation, ranging from Excalibur at 67.17 to Easyguard at 95.76.
Price by type
Why? Functionality drives cost, with basic alarms at 59.99 and remote start systems at 69.99.
Price by features
Why? Advanced capabilities increase value, from keyless entry at 59.93 to 2-way paging at 88.62.
🛒 Some on sale right now
Common questions
What is the price difference between new and used security systems?
New systems have a median price of 39.97, while used systems are lower at 32.75.
Which brand is the most expensive on average?
Easyguard has the highest median price at 95.76.
How much more do systems with trunk release typically cost?
Systems with trunk release have a median price of 78.96, representing a 118% delta.
How we got these numbers
Worked out from 200 live eBay listings (price range $11–$199, odd outliers ignored). These are asking prices, so use them as a guide. Last checked July 2, 2026.