Before the completion of this alarm, I checked about 4-5 different phones, and all of them did not fit this venture. Either there is no "speed dial" function, then there is no place to solder, then you can not collect the duck soldered. There were many reasons and pitfalls to abandon this idea. But after some time, it was 3310 that fell into the hands of her, and she just had everything she needed to eat. And a convenient soldering board, and speed dial.
In general, the meaning of the alarm is simple, your number is clogged in your phone with speed dialing, with which you go everywhere, i.e. primary telephone. The alarm system is installed on the object remote from you, for which you want to look after. In the case of opening the gate, gate, door where the mikrik or the terminal is installed, the contacts are closed and this causes a speed dial on the telephone-alarm. In general, the alarm calls you, and you get a call wherever you are.
Information immediately for those who want to make such a stray for themselves, a few tips.
In advance, before soldering the wires to the micric or terminal, the speed dial number should already be clogged.
On two phones, after soldering the wires after assembling the phone, button 4 and 1 drop out of work.
Of course, you can try to drive the number even after assembly, but according to the law of meanness in 90% of cases, the sealed number will be in your number to be forgotten))))
At 4, I usually score a speed dial and a wire approaches it, by itself, after assembly, the button will no longer function, and 1 probably refuses for the company, because I miss the wire just between 4 and 1))))
Well, of course, even in 3310 all distances were verified by the manufacturer and no one there thought that you would crawl there with a soldering iron and wires. including on the side you will have to make a hole for the wire outlet, and during assembly you will have to bite the pins on the button used. In general, after soldering the wires, the gaps will increase everywhere and they will need to be eliminated. Have to act on the situation.
Yes, in principle, the essence seemed to convey, and in the video, too, explained everything.