. Internal calibration
                        . Modular electromagnetic force sensor
                        . Weighing range indicat, white light LCD display
                        . High sensitivity light touch buttons
                        . Under hook recessed
                        . The glass door lock to protecting transportation
                        . RS232 interface module, USB interface module, built-in clock 
                        . Independent “Tare”and “zero” buttom, two-way communication
                        . Four level shockproof
                        . Dynamic temperature compensation
                        . Weighing speed adjustable, showing way adjustable
                        . Zero in range ability
                        . Automatic trouble diagnosis, Over-loading protection
                        . Unit conversion (g / oz / ct / kg / lb)