Latest version of Zigbee wireless communication system. • Steering Lock, Brake Lock, 2 Turn Tables. • 3600 line CCD aligner and 8 beam infrared optical sensors – High Precison. • High accuracy Inclinometer from VIT of Finland. • Caster Measurement directly and no turn-table reading need. • Sensors can be exchanged by any others with recalibration within 3-5 years. • Electronic level display. • The sensors can work continuously for nearly 18 hours with the 1800 mAh batteries and recharged for 1000 times.