Balance Double Beam Earth Worm Model Control system: controlled by single

Control system: controlled by single chip microcomputer

1 Trolley comes with spring and another without spring

Life size Model of Heart Dissection

1 x M21-500 Built-in Power Breadboard Experiment Kit

Balance Double Beam Earth Worm Model Control system: controlled by singleBased on the classic Roberval balance principle, the Double Beam Balance allows the determination of the difference in mass (rather than absolute value) between two objects, these balances come equipped with built in sliding masses. Double Beam Balances are known for their accuracy and durability. Dimension: 14"x7"x10" Pan Diameter: 6" Minimum scale: 0. 1 g Maximum weighing: 2000 g Weights: 100 g, 200 g, 500 g, 1000 g Premium Quality: This item is