120dB True WDR, 3DNR, Max. 4K resolution 2.8mm Fixed lens CVI/CVBS/AHD/TVI switchable Max. IR length 30m, Smart IR IP67, 12V±30%DC Experience 4K video surveillance with the simplicity of reusing existing coaxial infrastructure. The 4K HDCVI camera adopts a powerful R-Tech ISP and advanced 1/2.7" CMOS sensor, which provides superior high quality images. In addition, the camera features broadcast quality audio to provide enhanced supplementary evidence collection. Ultra-high definition and a complete set of features makes the 4K HDCVI camera an ideal choice for mid to large-size businesses and projects where both highly reliable surveillance and construction flexibility are demanded.