Wireless Door Sensor Alarm Chime, BITIWEND Home Security Window Entry Alert With Operating Range 600 feet/52 Chimes For Home/Garage/Shop (3 Door Sensors & 2 Receiver)

I’m impressed by this little set! I wanted something to put on 3 doors and have different tones for at least one of them (child’s room). This did just that! I’m glad I took a chance on this one, as I had looked at tons of them on amazon. Some people said it wasn’t loud enough, maybe they live in massive houses but I have one on the lowest setting bc it’s so loud! Yes, some of the tones are super long, but I’m very happy with the double ding that rings twice for my exit doors. Changing the tone for one was super easy, but you do have to do both receivers to have them both play the new tone (I didn’t bother, so one plays the double ding for all 3 doors, but I’m ok with that). I had to cut and triple up the adhesive due to how my doors are, but so far so good. My ONLY gripe with this is that the receiver takes up a whole outlet! I wish they made it just a tad smaller. I can see the top space (if I put it on the bottom) but there isn’t enough clearance to put another plug in, which stinks in a house with limited outlets. Overall very happy with this purchase and highly recommend to anyone looking for something like this.

These work great. We put a wall plug in our kitchen/living room and one in the master. Then, a sensor on each our downstairs windows. The windows are not wood so the sensors sticks great in place. Even though the big sensor half is on the frame and the smaller piece that moves with the window is slightly lower because the slider sits in the frame they still work great. Range good. Volume good. Not overly sensitive but perfect if a window or door opens so it doesn’t needlessly go off. I really like it. Some people complained about the “no simple ding” option. But there are plenty to choose from with four volume levels.

One of the sensors is very hit-or-miss. Sometimes it works, most of the time it doesn't, which makes it useless to me. Also, the light only flashes while the melody is playing, after which there is no indication that the door is still open, making it even more useless to me.Edit: Soon after posting this review the seller contacted me offering to replace the door sensor and receiver. I accepted and they promptly did as promised. I now have replacements for the two items.

Easy to install. Bought this for my Grandpa to be able to hear if my Grandma with dementia. My grandpa has hearing aids and we had a hard time to find a ring tone that he could hear without them in his ears. Most of the tones were a higher frequency, which he has issues hearing.Great that it has 3 sensors and 2 receivers.

Got this alarm so my dad would know if my mother, who has dementia, left their apartment. The sensors were easy to install with the adhesive pads provided. The chime units plug in to any wall outlet and were simple to pair with the sensors. I was able to put a chime in Dad's office and another in the bedroom, with a different alert programmed for each of their two exterior doors. Volume control is helpful and overall sound is loud enough to be easily heard even with the tv, etc. on. He'll know immediately if she opens either door, and which door it is. Great for piece of mind!

Bought this item...so small could not believe the package size. Thought something was wrong. I LOVE this item..so easy to install and does have some simple chimes...some are so funny and others are popular songs...It makes my wife at ease knowing when someone is entering the house..I install one on the door leading to the pools. It also has 4 different volumes...I recommend this item fully.....It has a dog barking so funny as one setting and another funny one is a siren.....if you buy one enjoy it...it’s a blast...

I previously left a 1 star review because I thought the item failed after 15 months. The only things that "failed" however were the batteries died and that I didn't think of checking the batteries. Lots of alerts to choose from. In my opinion it would be nice if they had a larger number of simple alerts.

These work wonderful. They alarm all the doors in the house of person with Alzheimer’s to alert if he is trying to get out the door. One main negative if you lose power you have to reset the alarms like you are putting the up the first time. I do not believe this should happen but it does