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Prathna Samaj, Mumbai, 400004.

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022-2384-1425

Product


4-Digit Password Lock

499.00

Category:

Description

A 4-digit combination lock based on 9-keys 1 – 9 and reset on every wrong key press.

Additional information

Conceptual Learning

Internal working of 10 stage counter, sequential logic, changing the password, practical applications, reset on wrong key press.

Age Group

Std 6 onwards

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