The H.264 DVR Board Module with SD Card Slot is perfect to build your own spy camera or for your professional surveillance applications. It is currently being used in the security field to build security cameras and hidden cameras, in the medical field recording surgery and on the helmets of firefighters around the world. The multi-featured dvr supports 1 channel video and 1 channel audio recording. It supports manual, motion detection, schedule, and alarm recording modes with independent video size, quality, and frame rate set up. It has one SD memory card slot and supports any 12 volt external camera. The IR illuminator can be setup to ON/ OFF and per hour. The module can be concealed or built into exquisite casing.The economic dvr module has amazingly simple operation that is suitable for all of your professional evidence gathering needs.