Perimeter Protection function: line crossing, intrusion, region entrance and exit Temperature exception alarm for fire prevention, -20 °C to 550 °C (-4 °F to 1022 °F), Max. (± 2 °C, ± 2%) Fire detection algorithm 256 × 192 (the resolution of output image is 1280 × 720) resolution 12 ?m, VOx UFPA, NETD ? 35 mK (25 °C, F# = 1.0) Image processing technology: Liner, histogram, and self-adaptive thermal AGC mode, DDE, 3D DNR High quality detector with 10 years warranty Smart tracking: Panorama tracking, Event tracking and Multi-scene patrol tracking Smart tracking linkage: thermal view and optical view Smoke detection for fire prevention