Launch x631 CCD wheel aligner. Features * Infrared 8-beam and 16-sensor loop measurement, accurate and stable. * Newly developed ccd signal processing technology, nearly uninfluenced by the strong sunlight. * Complete system upgrading function. * Unique voice prompt function and visualized animation, very easy to understand. * Trustworthy operating system to give more convenient and safe operations. * Keyboard quick switch operation. * Both special version and common version are provided for user to select. * Both normal version and demonstration version are provided to make user's training more convenient and quick. * Large capacity (4000mah) lithium battery with low power consumption and dormancy mode of design. * Camber, toe-in, battery electricity quantity, charging status and electronic level, etc. Can be real-time displayed by LCD. * In-block type of casting aluminum alloy probe rods can strongly guarantee the stability and the test precision of the product.