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    Advanced Level Code Lock System with LCD

    Nvis 33D

    Product Description

    Nvis 33D is a versatile security device based on microcontroller 8051 family, which gives the alternative of keys. The user can set a 3 digit password (000-999). Light and sound indications are given for correct / incorrect passwords. User has 3 chances to enter passwords. The circuit is operated using 9V battery
    Product Features

    • The user can set a 3 digit password (000- 999) .
    • Light and sound indications are given for correct / incorrect passwords.
    • User has 3 chances to enter passwords.
    • Descriptive operating manual with procedure.
    • Simple and easy to perform.

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