Model OCS-20B,OCS-30,OCS-50 OCS -5A , 10A Capacity 20kg ( 44lb ), 30kg ( 66lb ), 50kg ( 110lb ) 5kg ( 10lb )10kg ( 22lb ) Graduation 0.02kg ( 0.04lb ) 0.005kg ( 0.01lb ) Operating Temperature &Humidity 0 °C -- -40 °C 80%R.H 0 °C -- -40 °C 80%R.H Power Supply 2xCR-2032(Lithium Battery ) 3x1.5V AAA Special Function Temperature Measure, Tape Measure Material Details (Outer Casing) Alloy-Aluminum ABS Plastic Dimension of Unit 97x54x 22mm 92x53x 19mm Dimension of Export Carton 135x80x 40mm 150x115x 26mm N.W. 185g 73g G.W. 230g 125g Packing Details 10pcs/Small Box, 20.5x14x 17cm 80pcs/Export Box,43x28.5x 34.5cm 10pcs/Small Box,28x15.5x 11.8cm 80pcs/Export Box 58.5x32x 24cm 20? Container 52320Pcs 51840Pcs