... dome camera 2.IR Cut function 3.CCTV security system 4.high speed focus 5.IR 100meters distance ... lower than 50°C;3, Use high quality components, high minute subset into TV, long life ... effective Distance 100 Meters.8, Optional temperature control system, suitable for working in high or low temperature ... camera, Metal double cover.2, Use high quality components, high & minute subset into TV, long life ...