The BushBaby3 Smoke Detector is a great surveillance camera. The electronics of the smoke detector have been replaced with a dependable high resolution camera. It is great for all sorts of home and office surveillance needs. It records HD quality 1280 x 720p video. It can either record continuously or use the motion detection setting. This model supports internal memory up to 32gb. The handy auto-overwrite feature makes it easy to use on a daily basis..