1byone Driveway Alarm Wireless Outside, 1 Receiver 2 Infrared Sensors

This is a great addition to my home security. I live in a neighborhood that sees lots of bear activity. They come around at all hours, day and night. Having the sensors located at points where the enter the yard gives me a warning to get up and chase them away before they get in the trash or destroy my garden. The sensors do tend to send false alarms when the wind blows leaves in front of the them and even small birds sometimes sets them off. Works great and the battery life is excellent.

Wireless motion sensor works great. Good for camping and many other security issues.

Works great and is very loud

The dinger goes off as soon as someone pulls in the driveway. It was easy to set up and the batter life is satisfactory.

This alarm worked just as I had hoped. I use it in the house and garage area. Turn it on only at nigh to detect any intruders.

UPDATE AT BOTTOM OF REVIEW! I swear this thing goes off 30 times a day. I know the batteries wont last a month. Its been windy, and despite the fact that there is NO GRASS, no weeds, no bushes, NOTHING within distance of eithjer of the sensors, it still goes off. This morning a person pulled into my driveway super early in the morning to see the suv I have for sale, and this did alert me. So that was good (the reason for 3 stars and not one). But I can pull into the drive further away than 12 feet and a big old Toyota minivan does NOT set the sensor off. BUT A BUSH 3 TIMES FURTHER AWAY DOES??? Look, My user ID says it all. I know a lot about this type of technology. I cant figure it out. Others pointed out that overcast (sun going behind clouds) will trigger the remote sensor, I am not seeing that happen. I do have the advantage of watching it happen on a myriad of cameras. I am without words. WHY? There is nothing i can see setting it off. I will note it stops falsing after dark. Its frustrating. NOT reliable at ALL. I'm going to keep it till I can find a better model locally. UPDATE. Been a week or so without much wind, and it works GREAT until the wind starts blowing a lot. Apparently the wind moves shrubs that are (technically too far away to be detected.. so thats still a mystery) but wind messes this thing up. On a calm day its works PERFECT.

It is very loud and can be heard from all throughout the house.

This works well as most people have said. However for me, the advantage of its sensitivity is a downside for me. I have a lot of trees and grass next to my driveway and when the wind gets going, the alarm goes off frequently because it can't discriminate (duh) between a car and a trees blowing in the wind. I tried taping over part of the sensor window but that hasn't helped. Also, FYI, the "Ding-Dong" sound is not really a chime but more of an electronic two tone sound. So back it goes.

El sistema de alarma está tal como se anuncia y llegó en perfecto estado y funciona muy bien. Muy Satisfecho.

Product claimed to be security alarm, but alarm is very even with high volume, I placed the product in ground floor and sensor in first floor when motion detects volume is very low if I am in the other side of house. We have to carry that device where ever we go to get the alarm sound. Also with this price there is no power adapter for the receiver. Not worth for the money. Product shall be improved better.

Bad quality