系統整合​

are or sets of that are aimed at who has the ， that is to say the so to speak， to enter or get into areas or have the to use . These play a vital， role in ， be it ， like and and ， fancy or homes of ， and even in some and as they a level of ， I can tell you that no .

One of is that there are types out there， so many to from.

1. Key – based ： These are the old – yet still used type. You know， you use a key， made of metal， to a door and enter. They are kind of to .

2. ： Here， you just need to punch in a code on an . You press some one by one to the pre – set and voila， you're in， if the code is of .

3. Card – based ： Have you seen those cards， with some sort of strip or chip in them？ Yeah， those. Your card， it over a can grant you . Real in a way and quite found in .

Now， when it comes to using ， there are some hints. You have to your needs well. Take your time to think about it； I for a long time any .

If you're alone in a house， a basic key – based might be you only need to keep out . But a with data or goods， whoa， they are gonna need much more high – tech and like a or – for top – notch .

of your also . Say you're at a place with a high crime rate. Then you your to the and in to .

Here are some asked about ：

Q： Are card – based ever at the risk of card ？

A： Well， it's a bit of a risk， sure. Older cards might be more . But newer have fancy anti – to that kind of bad . The that make these are aware of these and are on you.

Q： How much do cost？

A： Oh boy， that . ， like and which offer super high ， they can be ， from some to of or more on how you want it to be. or card – based can be much more – ， only a few dozen for basic .

As for based on ， are of their . You don't need to carry a key or a card. But the is， if your code， you're in . On the other hand， card – based are more since you can just swipe it， and it's a if you lose your card . are and ， only you can get in. But they could be by some like cuts or dirt.

From my point of view， are a must – have . They with and types give you level of . For your and what's yours and ， the right is so and I hope this helps you that out！