Kosmos Quality and Safety
More than one hundred years of expertise in publishing science experiment
kits stand behind every product that bears the Kosmos name. Kosmos
experiment kits are designed by an experienced team of specialists and
tested with the utmost care during development and production. With
regard to product safety, these experiment kits follow European and US
safety standards, as well as our own refined proprietary safety guidelines. By
working closely with our manufacturing partners and safety testing labs, we
are able to control all stages of production. While the majority of our products
are made in Germany, all of our products, regardless of origin, follow the same
rigid quality standards.
An adult should assist with installation or
replacement of the battery.
1. Remove the lighting unit from the microscope.
Gently pull the lighting unit holder arms (1) apart
so that the retaining pins (2) can be pushed out of
the retaining holes (3).
2. Open the lighting unit by removing the screw (4)
with a small Phillips-head screwdriver. Remove
the top half from the bottom half.
3. To install a fresh battery, you need to first
remove the exhausted battery. Press the two
retaining tabs (5) slightly apart — the battery will
pop out of its holder. Replace it with a new button
cell battery (3V, CR2032).
4. Insert the battery with the correct polarity
orientation: The (+) side faces up (6). You can refer
to the marking on the battery compartment.
5. Fit the two pieces of the lighting unit together
again and reattach the screw.
6. Reinstall the lighting unit in the holder by
pressing the pins back into the holes.
6
2
4
1
5
3
How to Install and Replace the Battery
