Monthly Archives: December 2014

Merry Christmas & Happy New Year

Approaching end of 2014, a lot of things happened around us.

We launched our own website, www.doorbellsg.com, on Dec 2014. Ever since, we have received numerous of positive feedback from our customer about our product. This encourage us to strive more in introducing our products to more people in Singapore.

However, just that we thought that we can close our 2014 chapter with smile, our prayers and thoughts go to those grieving families due to AirAsia QZ8501 incident. It is indeed a really unfortunate incident at this timing of the year.

Nevertheless, we still wishes all our customers merry christmas and happy new year 2015, may this new year bring you prosperity and success in every aspect that you do.

See you in 2015 and we hope to hear from you soon.

Cheers,

Management of doorbellsg

Importance of Doorbell

Some people might not associate doorbell with safety. However in reality, this device might prevent home robbery or invasion. The doorbell will alert you when someone is at the door, allow to prepare and look to see who is waiting for you in the front door. After ensuring the identity of the person, you can open the door and you can prevent serious incident from happening.

As a homeowner, you are responsible for many aspects of your property, including the safety of your loved ones. Installing a doorbell can help you avoid crime and accidents. Knowing who enters and leaves your home will help everyone feel more comfortable. Your home is one of your biggest investments, so protecting it from the unpredictable is a way to avoid financial loss in the future.

When selecting a doorbell, you must be ensured that the ringing volume must be able to be transmitted throughout the house to keep us informed that a visitor is present. Keep in mind that the larger the size of property is, or those made with think walls may require additional wiring or sound extenders.

Sometimes buying a correct doorbell in Singapore can be a hassle. That’s why at Doorbellsg.com, we provide a doorbell which meet all your requirement: Easy to install, able to adjust the volume of the speaker, and availability of melody selection. You can be among satisfied customer who make the wise decision by choosing our product!

Remember, you can always contact us here and we will get back to you within 24 hour. We hope to hear from you soon!

How doorbell works?

Ding Dong!

Ever wondered how doorbell works? here is the answer!

A chime doorbell uses a specialized sort of electromagnet called a solenoid. A solenoid is just an electromagnet where the coiled wire surrounds a metal piston. The piston contains magnetically conductive metal, so it can be moved backward or forward by the electromagnetic field.

In this design, the solenoid piston consists of an iron core mounted to a non-magnetic metal bar. When there is no power to the electromagnet, a spring pushes the piston to the left, and the iron core extends outside of the wire coil. When you turn the electromagnet on (by pressing the doorbell button), the iron core is drawn to the magnetic field, so it slides into the center of the coiled wire.

As the iron core slides to the right, the end of the piston strikes the right-hand tone bar. The tone bar vibrates, producing a particular note. This is the “ding” sound.

As long as you hold the doorbell button, current will flow through the electromagnet and the piston will remain in this position. But when you release the button, the current will stop flowing through the electromagnet and the magnetic field will collapse. The spring snaps the piston back to the left, where it hits the tone bar on the other side. The second tone bar produces the “dong” sound.

You can make more elaborate tone sequences by adding more solenoids and tone bars. Some variations on this design produce a different tone pattern when someone rings the back doorbell than when someone rings the front doorbell. Each doorbell button closes a separate circuit, connected to separate solenoids in the doorbell mechanism. In the simplest design, one of the solenoids hits a bumper instead of the second tone bar. In this way, one doorbell button will trigger a “ding-dong” tone and the other button will trigger only a “ding” tone.

In recent years, more and more people have been installing electronic doorbells in their homes. An electronic doorbell doesn’t have any electromagnets or tone bars. Instead, it has an integrated circuit (IC) that registers when the button has been pressed. The IC triggers a digitally recorded song or message. A lot of electronic doorbells have a wireless control system so the doorbell mechanism doesn’t have to be specially wired.

Electronic doorbells are growing in popularity, but most homes still use conventional electromagnet doorbells. This classic design may not play elaborate songs or messages, but it is so simple and sturdy that it should be around for a long time to come.

 

Source: http://home.howstuffworks.com/home-improvement/repair/doorbell3.htm