... color difference between two samples 2).Tolerance function 3).Auto memory (99 sets) & RS-232 TES-135 Color Meter + Promoting Item & ... , Gs, Bs) Maximum, Minimum and Average function. Tolerance function. Auto memory (99 sets) & Read function. RS232 interface. Display:Triple 4 digit LCD ... × 118mm × 46mmWeight:Approx. 220gAccessories:Instruction manual, Battery, AC adapter, RS232 cable, software CD.