The D55 is 3MP fixed indoor dome camera with 1/3.2" progressive scan CMOS image sensor. Features day and night with IR LED, fixed lens with f3.6mm/F2.0, 72° horizontal viewing angle, 1/5 to 1/10000 second (auto mode) electronic shutter time and board lens mount. Surface, pendant, wall, corner, pole, flush and gang box mount types are available. -10 to 50°C operating temperature. Fully compatible with ACTi software.