Best driveway alarms and sensors

Whether you have a long winding driveway or a short road leading to your garage, driveway sensors—like our top pick, HTZSAFE—are a smart way to monitor vehicles entering and exiting your property. These devices are easy to install and fit a range of budgets for long and short driveways.

Take a look through the different sensors and their effective ranges, and think about the geographic features around your home. Heavy foliage and hills may reduce those ranges, so figure out which sensor would work best for your home—and never be surprised by a visitor again.

Not only does it have a cute (yet surprisingly subtle) owl design, but installation is a cinch since the sensor is powered by AA batteries and the receiver simply plugs into the wall.

We also like the choice of 35 different chimes, all of which are nice and loud (though not the best quality sounding).

The Guardline driveway alarm comes with more than 30 customisable alert sounds and can be expanded to include multiple sensors—up to 16, or four zones with four sensors and one receiver per zone. You can pair specific sounds with specific sensors so you’ll always know where the motion is without looking. The only thing we're not fans of is the higher price.

Not only is the HTZSAFE one of the most affordable driveway alarm sensors, it also includes a lot of thoughtful features like unique alarm tones, a long wireless range, and support for up to 32 sensors.

When paired with other outdoor security equipment like motion detector lights, outdoor cameras, and other affordable motion sensors, driveway sensors can keep you aware of what's happening at your home whether you're there or not.

In our best driveway alarms and sensors review, we researched dozens of devices, read hundreds of customer reviews, and used our decades' worth of safety and security experience to bring you the best products.

Check out our methodology to learn more about how we review products and services.