High quality imaging with 4 MP resolution Excellent low-light performance via ColorVu technology Efficient H.265+ compression technology to save bandwidth and storage Two years maintenance-free with the built-in 2 L large-capacity water box for cleaning the camera window once a week after filling the water box Ring-type sunshield to block the stray light incident from outside the range of lens field of view and reduce dust adhesion Built-in heater to ensure clear image under rainy or snowy weather and enhance the lens window glass decontamination ability Water and dust resistant (IP67) and anti-corrosion protection (NEMA 4X)