Greencycle Motion Sensor Doorbell, Door Chime for Business When Entering, Store Door Entry Bell, Commercial Door Entry Alert, Motion Sensor Detect Alarm, Caregiver Reminder for Elderly, Visitor Bell

The Pros: Very sensitive. Lotsof different types of alerts to choose from. Welcome in several languages. Can choose sound or visual and one option for both. Cons: For MY application, I wish I could have a softer volume choice, Again, for MY application, I don't like the bright blue LED on the sensor. My son sneaks up on me a lot and sometimes I am so buried in my work on the computer, which is in my room, and he is like a ninja. Just, "Hey dad." scares the bejesus out of me, so I got this to alert me when hje is coming. I didn't want him to know and that's why I don't want the blue LED light and also, on the sensor, sometimes the light alert isn't enough, but the volume on the sound is too loud even on the lowest volume. My application might be unique so just keep that in mind. This is a very good option. I was hoping to find something that would alert me straight to my phone using Bluetooth rather than these that go through the network because those have a slight delay. Otherwise, the unit is great.

Works better than I expected! Great product for my business!

Got the single sensor with 2 receivers. The first receiver is about 40 feet from the sensor (which is outside but sheltered from the rain and sun), but inside the building. It works perfectly. The second receiver is about 150-200 feet from the sensor. It is also outside but under cover. I had it slightly around a corner of the building and it didn't work. I had to move it from behind the building so it had a direct unimpeded path between the receiver and sensor and it works fine. It just isn't exactly where I need it.I decided I didn't want to have to keep changing batteries and worrying about the batteries dying, so I plugged them in using the USB ports. By the time I bought 3 USB cables and 3 adapters, it added another $60 to the price, so figure on that or having to buy batteries for the life of the door alarm system (takes AA and AAA batteries, not included).

Our patio leads out to a busy walkway and there is no gate to block people out. We got this as an alarm system to deter potential intruders and to alert us. The sensor was easy to mount to a sliding door frame (comes with double sided tape). Its been up for 5 months and hasn't fallen off (covered patio, not exposed to weather). Any heat signature will set it off so it detects cats, squirrels and people. I wish it had a screw feature for adjusting the angle more accurately to my space instead of the preset notches. The receiver has tons of tunes to choose from and can be heard from the outside when it is set off. The lowest volume setting has woken us up from another room. I love that it also has a light that blinks with adjustable settings. If you power it using batteries, its super easy to move between rooms (bedroom at night, common areas during the day). It comes a stand or it can be wall mounted. Sometimes our friends enter using our patio instead of the front door and its nice to adjust the tune to the "hello welcome" option. This thing is an incredible value compared to what we almost spent by if we had gotten a motion sensor and camera system that charge subscription fees.

This motion sensor alarm 100% solved an issue I had with folks walking into an unauthorized area at work. Installed and set up in under 10 minutes, no issues. Some users say that the 'Alerts' (chime, voice announcement, alarm siren sounds, etc.) are too loud, and can't be set to a comfortable volume. (Maybe the manufacturer has fixed this in an update), but I found the (4, or 5) volume levels on the main unit to include a volume low-enough to be perfect in a quiet office environment. Plus, you can set the main (larger) unit to *only* flash its (incredibly bright) LED without making any sound whatsoever, if desired. Note that the LEDs on both the Motion Detector head, and the Main Unit on the one I received are not RED — but a pleasant, bright blue color. Each component has a 'Mini USB' port which I'm assuming gives you the option for external power, but for now I'm just using the 'AA' Battery option in each device and getting really great results. Both the Motion Detector, and the main Receiver Unit have their own power switch so you can turn them off when not needed. Very happy with this unit.

As I get older and more paranoid this is great for letting you know when something is moving in your house. It is loud and does its job but my wife hates it!! lol.

Works well and easy to install. I have it mounted at the front door of a GNC store. The regular chime with no voice worked fine then was changing the setting and now chime by its self won't work. Only chime and voice welcome. Every time I set it to chime only the alarm noise goes off. Wish it had a different voice option then an Asian female accent only.

Our other motion sensor didn't seem to work every time. This one is SUPER sensitive. We had to readjust it after a few weeks of it constantly going off from any movement. We had to aim it towards our ceiling a little to help. Works great though and nice and loud. We used it for our small business.

Works well, good volume control. No fuss to set up with the sensor adjustment being excellent. Like the idea of being able to wire it via USB cable so I don't have to worry about batteries.

ممتاز

Works great, showed up on time

doorbell works well