2001 Key Ultra Balance UCW4 Automatic Checkweighing system designed to separate and transport product to be weighed. Samples are carried along an unput chute via variable vibration and dropped into a weighing cup. Once produt has stabilized sample is weighed and then released into a collection bin. Complete with UCW4 Ultra Balance rated for up to 8,000mg with a 1mg reproducablity and 0.3mg accuracy, interfaced laptop with CW-2001 Visual 2 software (2007 version), comunication cable and printer port. Software is easy to navigate. Machine is in good working order.