The ultra-series speed dome SD65F230F-HNI of Dahuacan provide powerful optical zoom and accurate pan/tilt/zoom to make the camera catch every angle of view. And also with the Starlight technology, the camera is the perfect solution for both ultra-low illuminate environment and day light. The True WDR makes the camera never afraid to face the sunlight or glare directly. Although all these technologies allow the camera to provide high quality image, the difficulty is to survive in this extremely harsh weather conditions. The Dahua camera is able to operate in extreme temperature environments from -40°C to +70 °C (-40 °F to +158 °F) with 95% humidity and the camera complies with the IK10 Vandal Resistance impact rating.