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KR-M518 Wireless Doorbell with unnecessary battery Environmental friendly

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  • Description
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One doorbell host can add up to 20 buttons/detectors
One button can be add into unlimited doorbell host
This kind wireless doorbell DO NOT Compitable with other type.

KERUI M518 Wireless Doorbell with 52 ringtones and 5 level volume

The wireless doorbell adopts advanced wireless transceiver technology, powerful microcomputer control system, large capacity and superior voice processing technology,
up to 52 songs, including mute function. Reliable and stable performance. The doorbell and the transmitter are connected through a wireless learning code, which has the
functions of doorbell, anti-theft alarm, and welcome alarm. It is suitable for various occasions: villas, clubs, leisure centers, shops, hotels, homes, offices, conference rooms, etc.

main function

1. Support multiple doorbell transmitter, suitable for large villa
2. 52 songs optional
3. 5 levels volume adjustable within mute mode.
4. Support up to 20 buttons, not lose even power failure
5. Doorbell buttons don't require batteries


1. Power supply: AC 100-240V 50-60Hz
2. Standby currents: <3mA (220V AC)
3. Working currents: <11mA (220V AC)
4. Frequency: 433MHz
5. Receiving distance: 100m(open area)


1 x KERUI M518 Doorbell Recever
1 x F56 Doorbell Transmitter
1 x English Manual

Packaging & Shipping

Shipping Method: By Sea, By Express, By Post.
Packaging Method: Standard exporting packages in carton boxes , Original Box or by your requirments.

Package: 1x Wired Infrared Motion Sensor




Our Services

1. OEM&ODM Service

A, customized the language is appreciate (such as Italian, Arabic,Portuguese,French ,etc)

B, customized logo on the alarm system ,also can print your logo on the packing box.


2. 12 months Warranty and high quality

All our alarmes with 12 months warranty, first 3 months replacement, long-life maintenance

each alarm undergo strict tested by QC before shipment


3. Professional service and Factory Price

100% original brand manufactory production, highest quality with the competive price.


4. Payment

T/T, Western union, or Paypal (value less than 500 USD)



Company Information
Basic Information:
  Shenzhen Fuers Technology Co., Ltd. was found in 2008 . We integrated technology and design into people-oriented products to provide "easy-to-use" products and solutions for global families and commercial clients. 
  We have two SMT producing lines and a professional technic team with 30 hardware & Software engineers. Our diversified product range could meet various demands from customers. Lukbird is gradually establishing a complete distribution and marketing network all over the world.
Our Advantages:
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 Q1. Can I have a sample order?
Yes, we are willing to offer trial sample order to you for quality test. Mixed samples are acceptable.

Q2. What is the lead time?
Sample needs 1-3 working days, mass production needs 10-25 working days for order less than 5000pcs.


Q3. Do you have any MOQ limit?
EXW MOQ is 20 pcs under carton box.

Q4. How do you ship the goods and how long does it take arrive?
The sample will be sent to you by optional shipping service (couriers, air, and sea). The delivery time
depends on the shipping service.

Q5. How will we proceed the order if I have logo to print?
Firstly, we will prepare artwork for visual confirmation. If the color and position are right, we would
make sampling firstly from silk print factory and take picture for your second confirmation before
mass production.

Q6. Does this sensor work with any alarm host?
It can work with most of the alarm host with the same frequency.

Q7. Warranty Period
12 months.


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