Wireless cameras

Compared to conventional CCTVs ,  wireless cameras are becoming increasingly popular since no wiring is required prior to installation.  They usually operate at a frequency of 2.4 GHz, with prices starting from around $60 for a basic model and higher prices for additional features.  If you wish to buy from China, these cameras can be purchased online.

CCTV for surveillance

If you are installing a CCTV for surveillance which will be used as legal evidence, it is advisable to select  one which can display the time and date.  It should work in low light and be connected to a recorder with sufficient capacity.  It is important to take regular backups of the footage stored.

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