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Excellent for pen and ink sketching
length: 35cm
These conductors are made from brass and are interchangeable on the pillars
Longer than 7A sticks and smaller than 5B sticks
Potometer Apparatus (on White Stand) (Each) A822496 Excellent for pen and inkMeasure transpiration rate or humidity with clever demonstration apparatus Minimal glass components reduces risk of breakage Great for studying essential plant physiological process Includes instruction manual Measure transpiration with minimal risk of breakages. The apparatus has only one glass component (capillary tube) which is securely mounted on a strong backing plate and printed with a 0 10cm scale. A cut plant shoot is inserted into an inlet