have two more cameras compared to the common mover camera, can view a whole round of inne pipe once PX-1 robot crawler CameraCamera lens diameter: 85mm Camera: Two cameras, I t can view 360° in the pipe at the same time.Camera lens shell: aluminium alloysCCD chip: 420 lineLighting level: 3 luxObject lens focus: 3.7mm (automatic change)Lighting: 10 LEDs (lightness adjustable)Bending section: ...