david 
Before you commit to a door chime you need to consider your business entry needs. The office arrangement and there being a receptionist are among some of the things you should watch out for. It is also essential to read and understand the manufacturer’s installation and the warranty information.
Door chimes that go off when the door is opened are the most known and basic chimes. These door chimes are always placed at the front door and are also used to alert the security in case certain doors are opened. This is mostly executed by companies that have dangerous chemicals and equipment that can be stolen. Medicine is placed in a separate area when it comes to pharmacy, this helps to reduce the risk of drugs being stolen: Whenever the door is opened the chime is set in motion, and it alerts them of entry. The noise could be a loud external noise, or you could also choose for it to go off on certain computers and devices. It does not necessarily have to alert everyone but it can just inform specific people only.
You can make use of an intercom if you need to be alerted about who is coming in and out. The door chime will be used as a link for allowing people entry to the building. The function of the intercom is to call the desk or apartment, and the receiver now decides on whether to allow that someone in. When the chime goes off it means that the door is open and that the person has been granted passage. This is ordinary in buildings and apartments. It helps to control the crowd of people that throng in everyday. People who work or live in the building access it through an entrance code or by unlocking it with a key.
There are door chimes that have both an intercom and a video camera. This are often enabled late at night. This protects the bodyguard from harm and prohibits just anyone from coming in. It enables the guard to get a good look at the person before allowing them to enter.
Maybe the best door chime for your business is the one that goes off whenever the door is opened. This might not be the best of ideas as it can become pretty disruptive and annoying. Some door chime systems allow you to turn them off and on. This allows the receptionist to turn it off when they have gone on a break and are away from the desk. Door chimes can have a timer, which allows them to go on at certain times. This help when you have slow evening traffic or when the receptionist has left for the day, and there are people inside still working.
