X-Spans series – Expanded views
What is Dahua X-Spans
The X-Spans series expands the camera view by expanding one or more lenses based on the traditional PTZ camera, providing a panoramic picture and detail in one camera.
Key Features
Panoramic Image & Detail In One ViewX-Spans’ Panoramic channel presents up to 180° ultra-wide view. It allows security teams to continue monitoring large areas with no interruptions, while PTZ cameras simultaneously zoom, tilt, or pan to monitor specific security events that occur.
Cost ReducingX-Spans series products generally consist of one or two bullet cameras and one PTZ camera.
It effectively reduces both purchase and installation costs of the security system.
• Purchase cost for equipment
• Costs for installation poles
• Reduced costs for network cables
• Multiple channels share one IP- Linkage ModeThe panoramic channel and detail channel can be linked to achieve smart tracking. When a human/vehicle triggers the IVS rule of the panoramic channel, the detail channel will proceed to track the detected object.
• Linkage Tracking: The object can still be tracked even partially occluded.
• Relay Tracking: linkage tracking + Auto tracking 3.0. The object can still be tracked continuously after walking out of the panoramic view. 
Independent ModeThe camera can be used as two independent cameras. The two channels can use different AI functions and the functions can be set by schedule.
• A Full-color bullet camera
• A PTZ camera with Auto Tracking 3.0- Adjustable Panoramic ChannelIf the panoramic camera is not adjustable, its monitoring angle is very limited. Dahua X-Spans series has different adjustment methods according to product positioning.
• SDT5X Series: Pan: 0°–360° endless; Tilt: 0°–30° electric control
• SDT8C Series: Tilt : 5°–17° electric control
• SDT4E Series: Tilt: 13°–23° manual control
Courtesy of Dahua Security