Everyone knows what the entry phones are and what is their function, they are used as intercom outside the factories and houses for keeping people from factories and houses secure from any sort of damage. These are used outside the society gates so that whoever person enters through the gate security officers can check them and get their information through intercom to make sure that they are not dangerous or are not here to cause any damage to you and after doing all security checks they will allow that person to enter the society or factory.
These phones are also used as providing information about some person who wants to meet people inside the building so that if that person is not known then security officers can stop that person outside the building and maintain the safe environment of a building.
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VK-TDR-1 Viking Electronics Viking Time Delay Relay OVERVIEW A time delay relay is an electronic device that allows specific events to happen after delays that are chosen by the user. Viking Electronics is a high standard company dealing in time delay relays. The VK-TDR-1 is a quality time delay relay with the finest features. 8 Delay times If you are using the VK-TDR-1 Viking Electronics, you can choose 8 closure times on which you want your events to be triggered. For each event, the closure would be executed after the input from trigger 1. The user can choose a time frame from 1 to 30 seconds for each of the closures. |
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