Quite often there are situations when the desire to follow what is happening in the house or apartment is based not on simple curiosity. The simplest example - children left with a new nanny or banal household theft. The most convenient way to solve the problem is to install a portable video surveillance camera with the function of recording to a memory card.
Recording volume of the CCTV camera
Cameras with recording function support micro SD memory cards and micro MMS, the volume from 4 to 64 GB. Depending on the quality of the captured image and the degree of its compression, this corresponds to the time of shooting streaming video from one to five days. After there is no free space on the memory card, the earliest recordings are being ejected from it. Thus, the information is recorded cyclically. To get rid of deliberately empty records helps the use of cameras with motion sensors that shoot video only when the moving object is in the field of view.
CCTV cameras with a record on the memory card - "for" and "against"
Cameras that allow not only to track, but also record what is happening in the house, garage or at the dacha, have the following advantages:
- They work autonomously, without requiring the installation of multiple wires and the presence of the operator.
- Have a compact size, which allows you to organize inconspicuous video surveillance.
- They fix not only the image, but also the sound.
- Have a wide range of operating temperatures (on average from -10 to +40 degrees).
- Can be installed anywhere inside or outside the room.
To their disadvantages can be attributed a fairly high cost and the need for periodic release of the memory card from the accumulated information.