I’ve been a Mobotix fan for a while with excellent image quality, no moving parts for better reliability and a camera that can record to and playback from network storage (NAS). The D15 is their newest model that boast a 5MP sensor. The same sensors are also used in the D25, S15, M15, Q25 and M25. As with their previous DualDome, it comes with two sensors, for this review, this camera has one day color sensor and one night B&W 38mm sensors. The camera also has a built in PIR motion detector and built in microphone and speaker which is unique.