Pit and pit less design un manned portable road weighbridges features menu driven operationhighly sophisticated state of the art technology based weighing terminalremote sensing excitation circuitryhigh-resolution analog to digital converterautomatic calibration checkauto zero maintenanceibm keyboard keypad interfacepassword security centronics parallel interfaceself & operator diagnosticsdigital indicator model with embedded microcontroller and large lcd displaysprinter interfaceauto zero trackingauto calibrationreal time clockwatch dog timer.