WiFi Alarm Home Security System, 120dB Alarm System with Motion Sensor and Remote Control, Wireless Alarm System for Shed Garage Alarm

Purchased for our out building. Even with a little distance from the house it’s still easy to hear. Well worth the price.

Best alarm system for the money. I have used this system for years on four different locations. With the ease of setting up and the loud alarm, that is all I require in a trip alarm.

I'd rate this five stars except for the absolutely worthless instructions (as several others have noted,) the implication it works on your wifi network, and the app which has nothing to do with this system. It has no relationship with your phone. That's too bad, it would be nice to know if it got triggered in your absence.The only thing wifi about this is that it uses the 2.4mhz wifi frequency to communicate with the various parts. In the package, you get the 120db siren, three motion sensing units, and two key fobs. It's pretty easy to set up, although you are on your own to figure things out.Upon inquiry, the seller claims that in the included 9V batteries in the sensors will last three years. The siren uses 120VAC. I set things up for a friend that has had trouble with a devious, silent intruder in an area of her property. The fobs will work through a bunch of plasterboard and wood timbers without issue. They have a short pullout antenna which surely helps. The fobs even have a slide up/down cover to prevent accidental triggering of the buttons. The very loud siren can be activated with the fob in the event you think someone is there, even though not sensor triggered. If activated by a sensor, it will run for a minute unless you shut it off.If this all sounds right for you, you will not go wrong.

Cheap crap - the speaker seems fine but the app is confusing and the detectors didnt even work

Works like it says and as it should, simple, I like this one because the alarm is way louder than the other ones

it's Working for now. We'll see how it goes.

I put this at my professional building that has a lot of homeless people. They come at night to sleep. Now the alarm goes off from the motion detector. They look startled the alarm went off and they leave. I set the alarm to sound for one minute. It’s loud !!

If you want to know that your alarm is going off at another location, you have to buy a monthly subscription….not cheap. 👎🏿