'It has given me peace of mind': Keep alert with this $40 driveway sensor — over 50% off

What is it?

Even in the spooky season, unexpected visitors can be a bit unsettling. Make sure you're thoroughly secure with the eMacros Driveway Alarm. It can alert you to guests from as far as a half mile away. Best of all? It's solar powered, so you don't have to worry about running a power cable.

eMACROS

eMACROS Driveway Alarm

$40$90Save $50

This sensor can alert you to motion from as far as a half mile away, and all it requires to operate is sunlight. 

$40 at Amazon

Why is this a good deal?

This $40 (down from $90) motion detector is a remarkable deal. For starters, it's 56% off! You can invest in a high-end home security system and get this same feature, but it will cost you a lot more. If you just want to know whether someone is coming up your drive, though, this should do the trick — and for only $5 more than its lowest price ever.

Why do I need this?

The eMacros Driveway Alarm boils down to a pretty simple product: It's a sensor with an alarm that chimes when it detects motion. The sensor itself gathers all the energy it needs through solar power, and it can pick up any vehicle that passes within 30 feet of it.

You can expand the system to have up to four different sensors and an unlimited number of receivers. You can also change the chime so that each sensor has its own unique sound, and you can adjust the sensitivity to minimize false alarms.

If you don't want to deal with all the bells and whistles and just want a reliable, straightforward device, this is the one for you.

What reviewers say

"The best little alarm system ever! I would highly recommend this one to anyone who wants to know when someone enters your land," said one happy customer.

Another five-star fan echoed that sentiment: "I am now aware when someone enters through my gate because I hear an alarm that notifies me of their entry. I highly recommend this alarm system and I enjoy it every day. It ... has given me peace of mind."

"Even the dogs love it," said another customer. "The dogs no longer have to listen for cars or look out the window. They learned the driveway sound by the second day. This system works great. Crazy easy to set up and install. The range is good for our driveway, which is 150' or so."

"Overall, we are very pleased with this driveway alarm. The only downside is that we do get some false alarms, but for the most part it works well," wrote a shopper.

eMACROS

eMACROS Driveway Alarm

$40$90Save $50

If you don't want to deal with all the bells and whistles and just want a reliable, straightforward device, this is the one for you.

$40 at Amazon

The reviews quoted above reflect the most recent versions at the time of publication.

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

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