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THE CARD

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Portable calls

IT IS IMPORTANT
The call button works as the remote transmitter in relation to a call-receiver.
A food is carried out at the expense of batteries of long using.
The case of a call - easy and compact, various design and colour.

PAY ATTENTION
Many devices can be programmed for reproduction simultaneously two melodies - one for an entrance central door of the house, another - for a back door (rear entrance).
Except the sound indication, the entering call can be accompanied by light flash.

THE DEVICE
The transmitter established about an entrance door; usually weatherproof, (it is protected from a moisture, a rain, snow, a dust).
The receiver of the small size, usually flat, reminding panel from video equipment, or round on which the button of switching-off of a call settles down.
The receiver can be:

  • Portable, working from the food battery;
  • portable, working from the socket (it is inserted into the socket of any room in which there is a person at present).

ADVANTAGES

  • Possibility to reproduce some variants of sounds;
  • presence of special codes which allow a call to work only from the transmitter;
  • radius of action depending on model - to 80 metres.

INSTALLATION
Portable calls represent wireless designs, therefore it is enough to fix the button of a call about an entrance door.

The Device with the call button should be equipped by the power supply (batteries).



In addition on the given theme:

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the Pendant sliding door
All about door loops
Choosing a steel door
Choosing a steel door - remember
Doors
the Doorbell
Wooden doors
Merits and demerits of a wooden door
How to choose interroom doors