Automatic internal adjustment in the case of a change in temperature ? 3 °C and time-controlled every 3 hours Draft shield standard (on all models with readout [d] = 0,001 g). weighing space WxDxH 140x140x65 mm Characteristics KERN PLJ-C: Weighing principle: Force compensation Alibi memory: paperless form of the archive of weighing results, see also page Internal memory for up to 999 weighing results, 1000 items or recipe ingredients, 100 container weights, 100 users USB interface for transferring weighing data to the PC, printer, USB sticks etc. Characteristics KERN PLJ-GM: Weighing principle: Strain gauge Rechargeable battery pack internal, standard, operating time up to 35 h, charging time approx. 12 h