Casio MJ-120D Check & Correct Calculator

The Casio MJ-120D is a mini desk-type calculator with the following features:

• 12 digits display: Suitable for a wide range of calculations.  
• Check & Correct function: Allows you to review up to 150 previous calculation steps and correct any errors.   
• Extra-large display: For easy viewing of numbers.  
• Localized number display: Shows numbers in the Indian comma marker format (Lakh and Crore).  
• Two-way power: Solar powered when light is sufficient and battery powered when light is insufficient.  
• Key rollover: Ensures that key operations are stored in a buffer, so nothing is lost even during high-speed input. 
• Plastic keys: Designed for easy operation.
• Tax calculation: Dedicated keys for calculating price plus tax, price less tax, tax amount, etc.  
• Mark-up: Simplified cost and profit calculations.  
• Regular percentage calculations.
• Square root function.
• Memory function.
• Double zero key. 
• Sign change key ( +/-). 
• 3-year warranty.  

The calculator is marketed for shop, office, and educational use.