Green Energy Kit Garden Measurement 5 x magnification onto a

5 x magnification onto a 30mm field

and swerve to follow your hand or finger across the ball

sturdy and effective - 60x magnification

with bonus smaller thermometer display

Range: 955 to 1055 hPa Red/orange print

Green Energy Kit Garden Measurement 5 x magnification onto aGreat science kit for juniors and intermediates, includes several stand alones the windmill generator, potato clock, and dynamo torch, with the common theme of using clean renewable energies. An eye opening introduction to the topic of energy, and a great resource for education. All parts included, but you supply the potatoes, a drink bottle, and (small) screwdriver.