Excellent in covering difficult buildings. Reliable. It does not give false alarms. 2nd purchase, again just as good. Ultimately a point of reference

It takes a little time to start up every day but after that it works just fine. It also has a long range and is not affected by walls.

It is the best option available for a store entrance, which is what I use it for. With the previous one I had—it would pick up everything from shadows outside to random passersby on the sidewalk—I couldn’t get work done in areas where I didn’t have visual contact with the entrance and feel at ease. Also, if a customer was near the door, it wouldn’t stop ringing, creating real noise pollution. With this particular sensor, I haven’t encountered any of the above problems even once, and additionally, its sound is quite “pleasant” so it doesn’t bother you even if it rings many times in a row. Another advantage is the receiver, which I can take with me if needed to make sure I don’t miss any notifications. In short, if you’re going to use it for a store entrance, buy it without hesitation. It may be a bit more expensive than cheaper solutions on the market, but it’s worth every last euro and then some.

The best thing I have ever bought. It is worth the money. I have placed it at the entrance and the bell is at a great distance, over 20 meters away, and even with loud music it can be heard.

Very good! Reaction is well! sound is loud! I bought it as a motion alarm, so I belive I have to get a remote switch, otherwise of I point it to the door and leave...when I come it will scream untill I run to switch it off. Worth money! Good quality!

As everyone says, it is. I have it at the entrance of the store. And it alerts without missing any movement. Adjustable volume and many sound options. Its battery lasts. Very good purchase. You won't regret it

The tool is amazing, I bought it after reading the reviews and they all hold true. I tried it in a parking area from the fourth floor and despite the obstacles, it works perfectly. It has many sounds and very loud volume, especially its siren is like a regular alarm.

Very good for businesses! It informs you at any time when a customer enters and upgrades the quality of service in your store! I highly recommend it!

Awesome, it does exactly what you want and very well, with switches to turn it off either from the outside or the inside. It's worth it. Hello Welcome !!

One of the best on the market
you won't regret it, with your eyes closed, don't look for anything else, the best purchase...
it works perfectly. it was installed at the entrance of our store...

The best there is, I have a store, I bought others that notified on their own without anyone, I threw them away while this one is very reliable

Without obstacles in front, I tested it at 100 meters and it worked flawlessly. The packaging states that it can work up to 280 meters away without obstacles. It has volume control options, etc. It easily reaches 4 meters in front of it, where I tested it. It claims to reach up to 6 meters. Very good for 20 euros.

I bought a lot and different ones! Some broke from the beginning and others after a few weeks for no reason!
It works perfectly, has a very strong sound and I haven't changed the batteries yet.
Excellent purchase, I highly recommend it!

Compared to others I have tried, this one is perfect. The sensor has a switch and a mini USB port, if you cover them with tape it will be relatively waterproof. I have it outside all winter, without getting wet from rain, but in a place with enough humidity, and it didn't suffer any damage. The internal unit (as well as the external one) works either with batteries or with a mobile charger, and it has several sounds and volume levels, as well as lights to see it if you don't hear it. The sensor's range is wide on the horizontal axis but narrow on the vertical, so you can adjust what it captures and what it doesn't. It captures from quite a distance and through intermediate walls. I live on the first floor of a house with an external staircase, and I wanted to be notified when someone is coming up, but not to capture the cat, and it does it perfectly. Overall, I liked it and it served me well.

Very good! A big advantage compared to others is the variety of different sounds and intensities!!! Very sensitive. I got it for outdoor use and because it is sensitive, it even detects flower movement, so I limited its range with a patent and it's great. I believe it will fully meet indoor needs as well. Both units have a charging port and work with a phone charger in addition to batteries, something that is not mentioned in the specifications. The price is a bit high compared to others, but it's worth the money.

One of the best purchases I have made!!! A variety of different sounds and volumes!!! Very easy to use!! In 4 months of operation, I haven't changed the batteries yet!!! The transmitter and receiver are 25 meters apart with walls between them and there is no problem at all!!!

First day in the store, everything is fine.
It catches everyone.

Update 11/08/22 Everything is fine, but I think if it catches the sun directly and hits it, it is very sensitive and can also catch noise without anyone entering.
No problem for me. It is very good for its price and its job.

Very satisfied
It has a great range
The sound is adjustable, you can hear it even when you are far away
I recommend it