Hikvision DS-2TD2366-50/75/100 Thermal Network Bullet Camera is applied to perimeter defense and fire-prevention purposes in critical infrastructures such as: airport, railway, prison, power station, 4S stores, and so on. The pre-alarm system helps you discover unexpected events immediately and protects you from property loss.Smart Function (Thermal Imaging) Leading image processing technology: Adaptive AGC, DDE, 3D DNR, NETD Powerful behavior analysis algorithm: Line crossing, Intrusion, Region Entrance & Exit Reliable temperature exception alarm function Advanced fire detection algorithm Thermal Imaging Module Function 640*512 resolution, high sensitivity sensor, support contrast adjustment Support shutter adjustment in various modes 3D DNR, 15 palettes of color adjustable, image detail enhancement 50 mm, 75 mm and 100 mm lens are optional