We are proud to introduce a brand new instrument that offers you a different experience compared to our previous two models. Here are some highlighted features of our instrument: Now here are some basic parameters: Product Dimension 221*152*100mm. Display Resolution =1/999999 Internal Resolution =1/100000 Sampling Rate =100ms/s Display = LED size:146*58mm Working Time = 4v/4ah Lead-acid batteries 30-35 hour Load cell Sensitivity = 2.0mV/V Load Cell Quantity =4*350 Ω Excitation voltage= DC power cable Power consumption = 70mA RS-232 = baud 4800 9600 Operating Temperature = 0-40℃ Storage Temperature= 20- ~55℃ Relative humidity= 45-55%Rh see below for details