---
product_id: 28068275
title: "KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range"
brand: "graneywell"
price: "€ 7.51"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.nl/products/28068275-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit
store_origin: NL
region: Netherlands
---

# KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range

**Brand:** graneywell
**Price:** € 7.51
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range by graneywell
- **How much does it cost?** € 7.51 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/28068275-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit)

## Best For

- graneywell enthusiasts

## Why This Product

- Trusted graneywell brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

The Go-Anywhere Wireless Doorbell SolutionThe Jerrybox DT52 Wireless Doorbell Kit is the 21st century answer to how a door bell should work. This device offers superior convenience, versatility, and performance. It can be used for any application: home, business, commercial, nursing and assisted living, and more. Beautiful Tunes & Nice Sound QualityEnjoy 48 tunes of chime to choose from, including from the usual "ding-dong" to any one of several familiar melodies that will make your guests smile. Volume can be adjusted to 4 separate settings. Each doorbell is set with a unique radio frequency code at the factory which guarantees your door bell won’t interfere with other remote devices.Ergonomic Design & Water ResistanceWe have improved the ergonomics of this product. The wireless transmitter is battery operated (long-life battery included) and mounted outside the door with adhesive tape or the provided screws. The receiver/chime unit plugs into any standard home outlet. That's all it takes! In just seconds, this device is out of the box and ready to go. The wireless transmitter is also specially designed with quality materials for outdoor use (waterproof rating IPX44). You are guaranteed for sturdy, dependable performance.Long Range & ConvenientThere are 2 chime units included. You can install them in different places. The wireless transmission distance is up to 1000ft/300m. You can be sure that, no matter where you are and how big your house is, you won’t miss a call.Amazing Decor for HouseThe plug-in doorbell kit has a sleek, modern design that fits in with any styles of decoration. The blue LED also flashes when someone is at the door, not just as a notification but eye-catching either!

## Features

- MORE CONVENIENT: 2 Chime units included can be installed in different places and will get you noticed wherever you are. You can be sure you won’t miss any visit
- LONG WORKING DISTANCE: The wireless transmission distance is up to 1000ft/300m. No matter how big your house is, you won’t miss a call
- OUTDOOR DESIGN: The wireless transmitter is specially designed with quality materials for outdoor use (waterproof rating IPX44). You are guaranteed for sturdy, dependable performance
- BEAUTIFUL TUNES & SOUND: Select from 48 tunes! From the usual “ding dong” to any one of several well-known and fun melodies, with 4 adjustable volume settings
- RELIABLE CUSTOMER SERVICE: Ready to respond within 24 hours, with 30-day money back guarantee, 12-month replacement warranty and lifetime support
- ›See more product details

## Images

![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range - Image 1](https://m.media-amazon.com/images/I/51ywVgb303L.jpg)
![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range - Image 2](https://m.media-amazon.com/images/I/61SIg4IjgsL.jpg)
![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range - Image 3](https://m.media-amazon.com/images/I/716bgVwrYgL.jpg)
![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range - Image 4](https://m.media-amazon.com/images/I/61kLH9tE6kL.jpg)
![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range - Image 5](https://m.media-amazon.com/images/I/71FAkwfzCLL.jpg)

## Customer Reviews

### ⭐ 







  
  
    Works well, can be loud if you want it. Excellent range, but design is flawed
  

*by K***N on Reviewed in the United States on July 11, 2016*

Works well, zero setup issues, no pairing or other chores to make them work. In its loudest setting, even grandma will hear the bell. I'll be interested in how long the little 12V battery (included) in the transmitter will last between changing. Also curious how it will weather the, uh, weather. Range seems good. One of the ringers is under a table on the floor in a basement and it rings every time. Mounting the TX/button was a breeze even for a non-handyman like me.**Update** After a couple of weeks, the button portion of the assembly that goes outside the door fell out. It uses tabs and a pressure fit so weather and sun causes the plastic to expand/contract. Very annoying. I put tape on the tabs to make the fit more positive but I fear I'll be doing this every few months. Should be a more positive fit design. Minus 2 stars for this design defect.After 2 months, the supplied battery went bad. Oops, it's not the battery--the doorbell button is now just inconsistent. Visitors complain they pressed the button and no ring. If you really smash the button it will ring. What a waste of time!

### ⭐⭐⭐⭐⭐ 







  
  
    Nice For A Good Price
  

*by C***N on Reviewed in the United States on May 13, 2016*

Got my AVANTEK this morning and thanks to the Koseyface instructional video, I was able to install it myself without a problem. I agree that a back button for selecting tunes would be nice, but it's no big deal. I also notice that it says to install the button where there is no "continuous sunlight". This was a bit strange.  I have a covered entrance, but still get a good bit of continuous morning sunlight, so because of that statement, I mounted the button on the door Itself, because it was a tad bit more shaded than the adjacent brick wall where my previous doorbell had been mounted.  Hopefully I'll get good service from this product.

### ⭐⭐⭐⭐ 







  
  
    Great product, works well, 8-bit chimes
  

*by M***R on Reviewed in the United States on July 7, 2016*

It works really well. I have a two-story house, so I appreciate having one plugged in upstairs and one downstairs. I attached the door bell, for now, with just the 3m tape that was provided. It also came with basic screws, but I wasn't sure if I wanted to permanently attached it, just yet. The volume control and music buttons are on the plug ins. I would have given this a 5 star review, but the chime options are pretty terrible, unless you get really excited about 8-bit tunes (especially Christmas ones). There are lots to choose from, but really none I really like. The other down side, is that there are so many tones to choose from and you have to go through ALL of them to get back to the one you want. On the plus side, you can choose different chimes for the separate units.

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-03-11*