Calculators

Below you can find the different brands of Calculators for which manuals are available. Click on your brand to find the manual you want. Can’t find the brand of your Calculator? Send us a message on Facebook, and we will try to find the manual for you.

Frequently Asked Questions

A battery in my device is oxidized, can I still safely use it?
Ja, the device can still be safely used. Firstly, remove the oxidizd battery. Never use bare hands to do this. Then clean the battery compartment with a cotton swab dipped in vinegar or lemon juice. Let it dry and insert new batteries.

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