Thought all the monitoring system is the same before, now just know originally used in different places have different functions of monitoring, such as HDB CCTV, one of the most used is in an apartment, HDB China central television (CCTV) is the most common in my apartment, this can be installed in the bedroom, kitchen and balcony, as long as it is needed, can be installed, HDB CCTV installation, of course, most in the bedroom is the bedroom in kindergarten, it can effectively guarantee the safety of the children and see what the children have a good lunch, but install monitoring are the most effective way to ensure safety, ensure the personal safety, also can ensure the safety of things are very useful.