A minus button that can be subtracted one by one,
Counter with reset button to reset to 0.

It is an optimal counting device for observation at the wild bird society,
Chickens and pigs you keep, outdoor stray cats,
It is a tool that can count the number of pigeons and crows.
It can be used for quick population inspection, work to count microscopic microorganisms.

A simple machine to measure the number of people at the intersection and the type of car.
It is suitable for traffic volume survey, counting passengers of buses and buses.

You can easily count the number of jump ropes in the park or school.
It also helps to count the number of visitors at the event venue.
In addition, office work at eating and drinking establishments and banks, checking the number of products,
Contributing to the inspection of the number of goods in a company or warehouse.

If you press the plus button with 4 digit digital display of numbers, the numbers are incremented by one.
Pressing the minus button at 0000 will move to 9999.
When you press C on the reset button, it clears and returns to 0.