... battery, AC and DC. 4, support for SD card storage picture, to facilitate the preservation of evidence. ... friendly practical use. 7, supports a variety of wireless anti-theft detectors, infrared radio fence, smoke, gas, flu, ... . 12, the configuration of 256Mb of SD card can store about 4,000 photos. 13, ... the maximum can be inserted into the SD card 2G, can store approximately 28,800 photos. 14 ...