Sanjie Door Chime,Wireless Door Chimes When Door Opens Entry Alarm for Home/Business/Office/Store with 800ft Range,55 Chimes and 5 Adjustable Volume Door Ringer Alert

Choosing a door/window sensor was aggravating to me. All the products seemed like either cheap junk or was a part of a larger system I had no need for. All I wanted was a product that makes a sound at a distant location whenever the door was opened. The reviews on this were mixed. The reality is that they do the job just fine. I like them. Can't beat the price BIGGEST DRAWBACK: sensors require a special battery I can almost guarantee that you don't have. The batteries that COME WITH the sensors may not last long, but once they do and you buy a quality replacement, like duracell or energizer, they will last just fine. Maybe I'll be changing the batteries once a year. Nonetheless the fact that they take an odd size battery is inconvenient, but inconvenient in 2023 is generally not that inconvenient. Second biggest drawback: There is a minor design flaw. You shift the cover across the base to expose the battery. If you install it upside down (that is to say you would shift the cover down to remove from the base) you can have an issue where it falls off the door when its slammed or if you have a very heavy use door AND the installation configuration necessitates installing the sensor portion holding the battery on the door itself. I imagine this would never be a problem if you installed the sensor portion on the door frame, which if you can, I'd recommend. If its on the door try to make sure that the cover does not slide downwards in the installed location. TIP: keep in mind the angle configurations you're working with. You have two pieces, the sensor and the magnet. They have to face each other to activate the sensor in the closed position. If you have the sensor on the door and there is no room on the doorjamb to place the magnet in alignment with sensor, you will have to chisel out a chunk of the jamb (had to do this on one door). The door is obviously flat and one piece will be attached to the door. There needs to be a flat spot opposite the sensor to attach the magnet to. Look at your doors and figure out your angles to see if these are a good fit. SOUNDS: A lot of comments on the sounds almost convinced me to steer away. Its is slightly hilarious and ridiculous clicking through the doorbell sounds. Some are very long. Having options like Fur Elise and Ragtime is just hilarious. Imagine hearing a MIDI big band song for 20 seconds every time the door is opened (lol). That said, there are a solid 5-7 very normal and simple chimes, you just have to scroll through and find them and that's an entertaining time I assure you. These full-on songs are so unnecessary and hilarious. MULTIPLE ENTRIES: The nice bit is that you can use different chimes for different doors, so when the door opens you know which door opened even though it won't be a voice that says "Front Door.... open" like some integrated systems do.

So far so good, already useful. Bought for sleepwalking child, since he is really sneaky when escaping his room, and it works for that application! Haven't installed more than one motion yet, but seems fairly straightforward. Installed fairly easy, but needs to be installed pretty precisely to work, which may require some jimmy rigging on our other door frames with decorative trim. Biggest complaint is the ringer, even on the lowest setting, is a bit loud...I will be moving the ringer from my bedroom to elsewhere so it doesn't panic me quite so badly in the middle of the night. For the price, not bad. Are there better options out there, likely, but there are also worse. Middle of the road price, middle of the road quality, so not unhappy with purchase.

GET THEM! These work great the noise is adjustable so you can nake it pretty loud. You can choose the chime sound you want to hear. These are very underrated because they work great to know when a door in your house is opening and closing.

Good idea, easy enough to set up, randomly delayed (2 minutes to 3+ hours) or goes off randomly, often waking us up in a panic and worried. We’ve tried resetting it and using different sensors from the pack it came with but same issues. Would not recommend this brand and would not buy again.

Great buy. Easy install and use. The backs are SUPER sticky so be aware! They will stick to whatever you put them on and might pull off drywall… We bought for our kids bedrooms when they get up at night or in the morning. They have worked great and the bell has no sound or 3 different levels.

I mounted 4 of these to let us know when doors in the house are opened. Very easy to install and I like the option to change volume of the sound and customize ring tones for each sensor. Highly recommend.

We bought these because we have a toddler escape artist. And they do work; however, they go off randomly when a door has not been opened. So we have a lot of false alarms.

Seldom am I as impressed with a purchase as I am with this one. We purchased these to protect our elderly mother who suffers from Alzheimer's. These alarms are AMAZING and soooo easy to install. Completely satisfied.