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Biological microscope children's primary and middle school children are 1200 times as high as sperm eggs with a special electron microscope

price:USD$103.00
discount 70% in 2018-08-17 to 2018-08-19
price: USD$ 72.10
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Method of use of microscope:

1. put the battery, turn on the power switch, light the light

2. counterclockwise rotation focus knob on the barrel to adjust the light brightness

The first 3. specimens, the specimen on the slide, can use another slide cover as the coverslip, because they are children's toys model, not a professional study, so save some links, then put a specimen slides on the stage is fixed on the clamp and specimen moved to the middle light hole, on slides of lens to the top.

4. the object lens turns to 400, and it is 400 times the object lens,The object lens turns to 1200, and it is 1200 times the object lens

5. eye lens, right hand lens adjustable height to the proper position, but don't touch the coverslip, eyes looking at the eyepiece, the right to increase a little time to focus, can see something to fine tune, to see what has been observed in detail.

 

For this process may be repeated several times, until you can see, not possible to be able to a suitable location, this is originally a foster child observation and experimental patient, even if the parents do not have a little patience, get a microscope, put a piece of something to the top of a place on the spin only three eyepieces they cried out to see, please do not buy such scientific experimental equipment!