The Scout™ Series are ideal for both education laboratories and industrial use. They are stackable for storage in a laboratory with limited space and has a large range of weighing modes available which make the balance suitable for a wider range of applications.USB or RS232 ConnectivityTransportation lock to protect the balance's weighing cell during transportationCalibration lock to avoid accidental changing of settingsPowered by AC adapter included or 4 x AA cells (Batteries sold separately)Weighing Units: mg g kg ct N oz ozt dwt lb lb:oz grn hkt sgt twt tical tola custom unit 1