DIGOO DG-HOSA 433MHz Burglar Alarm Sensor, Wireless Windows Doors Sensor and Infrared PIR Motion Detector, Work with Any 433MHz Home Security Alarm System for Home and Business(2 Pack)

Where to begin? I purchased this system, plus some extra sensors, to install at my mother in-law's apartment (roughly 100 SQ Meters). It is extremely easy to install. Adding the sensors is so easy, I had my 5 years old daughter do it, because, you know, "i want to help daddy". I haven't had a single false alarm, or a failing node since I installed a couple of months ago. The keypad has very basic functionality, but in my opinion, that's what you want for a system to keep you secure. Not too many bells and whistles. I have it connected to WiFi, and haven't even tried the GSM functionality (so I don't know how it performs there). The point it that, if you don't need too much in terms of a security system, and you want to self-monitor your home, even when you're away, this is the best bang for the buck you will get.One other plus I see is that you don't need to purchase the sensors of this brand if you don't want to. Say you find 433Mhz sensors cheaper from another brand, they will pair perfectly fine and they will work with this system for certain.I don't know what else to say. The basic system for less than 100 bucks, it's hard to beat.I can't say anything about the longevity of the product, because I just got it a couple of months ago. Oh, the app, well, don't expect to much. As a matter of fact, be ready to close and reopen more than once a week, because it's not very polished as it is right now (this is the ONLY reason why I took away a star). However, the system has never failed to alert me when someone walks into the house and forgets to disarm the system, even if the app is closed.

Works, but hugely annoying arrangement if you just want 2 or more door/window sensors. Result: I did not buy more Digoo sensors, went to an identical knock-off sensor set of door sensors only.

Do not buy these. First of all I believe you are supposed to get 2 motion sensors, I received one. I did, however, receive 2 door sensors and one was completely destroyed, had no pull tab in it, the battery was flopping around in the case and the battery holder was literally snapped in two. In addition, the door sensors only send a signal when the magnet is moved away from the sensor you do not get a signal when the magnet comes back, so you cannot detect open and closed only open.

Piece of crap. The instructions are written pretty well but you can still tell there are grammatical errors. But most of the instructions aren’t actually relevant.The app doesn’t work either! I would try to add more sensors using the app (like the instructions told me to) but when I’d try to enter a 3rd sensor, it would delete one of the other two! You can’t label the sensors.OH & THE BEST PART- It wouldn’t arm. I would “arm it” but then just press the unlock button on the screen & it would just unarm it- no alarm, no passcode entered, a serious disappointment.

I never opened them till now, was saving them for back ups and when I open ed the pack they are all dead. Put new batteries in and nothing is working. I love the alarm system and the motions senor that came with it and the siren I bought but just now using the extra add on's and they all are bad. That really stinks..

Very functional, easy to configure, fully comply, always detect, have not failed.CONS: The adhesives are terrible, it is better to use your own double-sided tape.CONS: Door sensors are a bit difficult to place in places with reduced space.Thanks

Good product - both! They worked as advertised. I did a slight modification to the infrared sensors PIR so that A.) I could use them on the outside parameter of my home and B.) I could use them with small Dogs [and regular sized cats) without them activating the alarm. Mods did not effect warranty.

The motion sensors were dead on arrival. Tried using different fresh batteries to no avail. Received a motion detector with the alarm host and it worked fine, probably because the battery separator tab was still in the product. These had no battery separator so they were running since the worker installed the batteries. Probably burned out because of it. The door opening sensors worked fine.