Balance - Single Pan and Cent-O-Gram Single Pan balance of capacity 311g and sensitivity 0.01g. The stainless steel pan has two pouring spouts and handle, and rests on a wire stirrup suspended from the beam. Zero adjustment through a simple knob on its left side. Total four beams, each with non-removable, center indicating sliders, graduated to 1g ´ 0.01g, 10g ´ 1g, 100g ´ 10g and 200g ´ 100g. Magnetically damped movement of the beam ensures rapid weighing.

Demonstration Aneroid Barometer A circular 10cm dial is graduated. Also marked in inches and mm of mercury. With rubber compression bulb and tubing connection for varying the air pressure arbitrarily to show the effect of increasing or decreasing pressure. Graduated from 960 to1060mbar ´ 1mbar.

Clinostat - Electric For demonstration of heliotropism and geotropism. Germinating seedlings are pinned to the table, which is rotated by an electric motor at 4 revolutions per hour. The motor is spindle mounted and may be clamped by a thumbscrew so that the plane of table can be set at any angle between horizontal and vertical. A plastic cover is provided for the table to shield the seedlings from draughts. Supplied with 3-core AC mains cable.

Demonstration Meter/Interchangeable Scale Ideal for class-room or group demonstration. Moving coil type, 30´15´30cm, with spring control and magnetic damping. Basic movement of meter calibrated to 5mA, 100mV. Long, pointer needle, with thick arrow-head for clear visibility from a distance, moves on hardened and polished steel pivots and jeweled bearings. Mounted in sturdy, plastic frame with transparent front & back windows. One side of frame has color-coded, 4mm socket terminals for electrical connection, and a slot for inserting or removing scales; other side has zero-adjustment k

Dynamo,Hand Operated Rotation of the wheel results in the generation of alternating current (AC) and direct current (DC), output selectable through a sliding switch. The dynamo operation glows the small light bulb mounted on base. Output can also be had from a pair of 4mm sockets. The complete unit mounted on base.