... . Intelligent wide-angle detection, special temperature compensation circuit design, wireless signal transmission. 3. Remote arm and disarm, automatically generates and ... be extended to 8G, 16G, 32G, automatic overwrite, data can be saves when power-cut, can connect with computers ... for checking in time. 10. Can pair maximum 10 wireless sensors/remotes. Special Features: Power Input:100~240VAC 50HZ/ ...