Door & Window Sensor Market Prices
Analysis of 1,183 eBay listings for door and window security sensors.
What you'll usually pay
💡 Buying used saves about 16% here.
👉 In short easy summary
The best value is found in battery-operated door alarms, which sit 24% below the market median. Conversely, plug-in models and wall-mounted features command a premium, with price increases of 37% and 30% respectively.
💚 Best value for your money
Price by items included
Why? Prices vary based on hardware complexity, ranging from 15.85 for batteries to 37.39 for cameras.
Price by features
Why? Power source significantly impacts cost, with plug-in units at 30 and battery options at 16.
Price by type
Why? Specialized hardware like transmitters (24.99) costs more than basic door alarms (16.65).
🛒 Some on sale right now
Common questions
What is the typical price for a new door or window sensor?
The median price for new units is 21.92.
Are used sensors significantly cheaper?
Yes, the used median price is 18.49 compared to the market median of 21.88.
Which feature adds the most value to the price?
Plug-in features see the highest increase, with a median price of 30 and a 37% delta.
How we got these numbers
Worked out from 200 live eBay listings (price range $10–$62, odd outliers ignored). These are asking prices, so use them as a guide. Last checked July 26, 2026.