# Citizen DE-200 (EXCHANGER)

The Citizen DE-200 is an arithmetic calculator with 10 digits precision and algebraic logic. It has 5 functions, 25 keys, and an LCD (liquid crystal) display. The power source is 1.5V mercury cell.
**Note:** conversions

## Facts at a glance:

Feature | Value |
---|---|

Type | Arithmetic |

Functions | 5 |

Keys | 25 |

Precision | 10 |

Logic | Algebraic |

Display type | LCD |

Length | 110mm |

Width | 67mm |

Thickness | 11mm |

Power Source | 1.5V mercury cell |

Year introduced | 2001 |

Year discontinued | 2002 |

## Replacements:

If you have a Citizen DE-200 that is no longer working, you can first try replacing the 1.5V mercury cell battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current models as possible replacements: