--- product_id: 59780188 title: "KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1)" brand: "brand: graneywell" price: "€ 63.64" currency: EUR in_stock: false reviews_count: 8 url: https://www.desertcart.hr/products/59780188-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit store_origin: HR region: Croatia --- # KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1) **Brand:** brand: graneywell **Price:** € 63.64 **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 (1Receiver+1Button, white-1) by brand: graneywell - **How much does it cost?** € 63.64 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/59780188-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit) ## Best For - brand: graneywell enthusiasts ## Why This Product - Trusted brand: graneywell brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description WELCOME TO PURCHASE OUR PRODUCTSKERUI is a professional security supplies supplier,focus on strong quality security products design,research and development more than 17 years.We are responsible for security,Only for you to enjoy a security life.Sound is not big enough? Unstable connection? Frequent battery replacement?You need a doorbell that can help you.KERUI M521 wireless doorbell know you,first the egg shell shape highlight workmanship,4-Level Volume (25 dB - 110 dB) you can choose for sleeping or even hard hearing;Operating range up to 500 feet(in open area),even if the button on the first floor and the receiver on the fifth floor,sound also very clear,Connection still stable;Button built-in one 23A 12V battery,energy saving so do not need frequent replacement;The button is generally installed outside the door,IP44 waterproof material adapt to a variety of weather.What?a button is not enough for front door and back door? The house is more than two floors?No problem,this doorbell can be extended to use,a receiver can be connected up to 20 buttons,and a button can connect up to 20 receivers,You can also set different ringtones for different door buttons,If you need please contact our customer service to ask for video.Introduction:Model:M521Material:PlasticPower:Push button need one 23A 12V batteries(Contained);Receiver with US plugUnit Size3.94*2.76*1.97inPackage Size:4.33*3.94*2.36inPackage contents: 1 x Remote Push Button (Transmitter) 1 x Plugin Chime (Receiver,Standard US plug) 1 x Double-Sided Adhesive Tape 1x 12V 23A batteries for transmitter 2 x Installation Screws Free lifetime technical support and 1 year manufacturer's warranty. ## Features - P.when("ReplacementPartsBulletLoader").execute(function(module){ module.initializeDPX(); }) - 🔔LONG OPERATING RANGE & STRONGER SIGNAL-KERUI wireless doorbell operating up to 500 feet(in open area),e.g. even applicable to some villa having 5 floors,500-feet working range, and doorbell sound make you never miss a visitor's arrival no matter where you are. - 🔔IP44 WATERPROOF Button-You can installed it outside,wireless doorbell kit doesn't affect even heavy rain.If the doorbell (the push button) got splashed wet,please let it dry in air. doorbell button can continue working properly. - 🔔POWER SAVING & COLORFUL MUSIC-wireless door bell button is battery operated,the volume range 25 dB - 110 dB,You'll be happy to have the option of turning the chime down or up,it's also a great option for different environment.Never miss a call. even if the TV sound is too loud,you can also see the receiver flash.and the button come with automatic sleep function,save electricity.wireless doorbell also come with many wireless door chime for you to choose. - 🔔EXTENSIONS & ESAY TO INSTALL-One button can match up to 20 doorbells, and one doorbell can also connect up to 20 buttons;Cement the push button on your door,Plug receiver into an electrical outlet,Press the button on the door,the receiver immediately ring.M521 electric door bell is not video intercom or wifi doorbell. - 🔔BEST SERVICE:Welcome to contact KERUI customer service any time for any question.we must offer satisfied answer and try our best to do what we can to serve all customers.ANEYWELL have a 1 Year warranty,100% quality & service guarantee. - ›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 (1Receiver+1Button, white-1) - Image 1](https://images-na.ssl-images-amazon.com/images/I/51lCufl58uL.jpg) ![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1) - Image 2](https://images-na.ssl-images-amazon.com/images/I/51ra9Udi9AL.jpg) ![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1) - Image 3](https://images-na.ssl-images-amazon.com/images/I/61RXLqakDQL.jpg) ![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1) - Image 4](https://images-na.ssl-images-amazon.com/images/I/51f3pYiiH-L.jpg) ![KERUI Wireless Doorbell,M521 Smart Waterproof Door Bell System Kit 57 Chimes 4-Level Adjustable Volume 500-Feet Operation Range (1Receiver+1Button, white-1) - Image 5](https://images-na.ssl-images-amazon.com/images/I/61QMvgxp4cL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Finally - an inexpensive, DIY, wireless doorbell you can count on. *by C***S on Reviewed in the United States on August 21, 2019* Offers more features and works better than anything you can buy at your local hardware store - and costs less. Great product.That's grandaughter Ruby at age 3 doing her famous Sherlock Holmes impression (cropped photos fit nicely in the little covered space below the button). ### ⭐⭐⭐⭐ all around great *by J*** on Reviewed in the United States on September 20, 2019* would like more single chime choices, other than musical versions. Otherwise excellent for the price and quality. ### ⭐⭐⭐⭐⭐ It does its function well. Comes with two receiver ... *by N*** on Reviewed in the United States on May 5, 2018* It does its function well. Comes with two receiver and one switch. I used to have one receiver and i have 3 story house so I looked with 2 receivers now I can hear very clearly for all the bell. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/59780188-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit](https://www.desertcart.hr/products/59780188-kerui-wireless-doorbell-m521-smart-waterproof-door-bell-system-kit) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-18*