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Casio DJ-240 12 Digit Desktop Calculator with Check & Correct, Tax, and Business Functions for Office, Accounting & Retail

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Casio DJ-240 Calculator Casio DJ-240 Online Casio DJ-240 Desktop Calculator Casio DJ-240 for Office Use Buy Casio DJ-240 Calculator Online
₹ 901.51 ₹ 979.90 (Tax included)

  • brand - Casio
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Best for: Accountants, tax consultants, retail billing counters, hospital finance desks, banks, and government offices across Punjab that need a high-capacity desktop calculator with built-in tax and business functions.

The Casio DJ-240 is a high-performance 14-digit desktop calculator featuring a dedicated Tax calculation function, Check & Correct entry review, Grand Total accumulation, and dual Solar + Battery power. With two additional display digits over standard 12-digit models, the DJ-240 handles larger figures without truncation — making it the preferred choice for accountants, billing operators, and financial desks where GST amounts, invoice totals, and multi-line calculations routinely exceed twelve digits. Available at Raju Stationery Mart, Ludhiana, for individual and bulk institutional supply with GST-compliant invoicing.

The built-in Tax key allows users to store a fixed tax rate — such as a GST slab — and apply it instantly to any base amount with a single keystroke, eliminating repetitive manual percentage calculations during high-volume billing sessions. Combined with the Grand Total function for cumulative invoice running totals, the independent memory for parallel sub-calculations, and durable keys engineered for sustained daily use, the DJ-240 delivers the full feature set that retail shops, CA offices, corporate finance teams, and institutional billing departments across Punjab depend on.

Raju Stationery Mart has been the trusted desk essentials supplier for schools, colleges, banks, hospitals, and government departments in Ludhiana since 1986. Whether you need a single unit for a new workstation or a multi-unit bulk order for a department rollout or branch standardisation, our B2B procurement process includes GST-compliant invoicing and reliable local delivery across Ludhiana and throughout Punjab.

  • Pre-set your GST rate in the Tax key: Enter your applicable GST percentage, then press the Tax rate set key to store it. From then on, a single Tax+ or Tax− keystroke applies or strips the tax from any entered amount — ideal for repetitive billing work.
  • Use the 14-digit display for large invoices: If your calculations involve crore-range figures, the two extra digits over 12-digit models prevent display overflow and ensure totals remain fully visible without switching to scientific notation.
  • Leverage Grand Total for multi-invoice sessions: The GT key accumulates the results of repeated calculations automatically. At the end of a billing session, press GT once to see the day's running total without manual re-addition.
  • Check & Correct before finalising: After a long calculation chain, use the Check function to scroll back through entries and correct any miskeyed digit in place — far faster than restarting the entire sequence.
  • Prioritise solar power in lit offices: Position the calculator where the solar panel receives consistent ambient light. This extends battery life considerably in well-lit offices and reduces the frequency of battery replacements.
  • Use memory for GST component isolation: Store the base amount in memory (M+), calculate the GST component separately, then recall (MR) to verify both figures independently — useful for invoice reconciliation and ledger entry.
  • Keep keys dry and dust-free: Wipe down the keyboard and display with a dry microfibre cloth weekly. Avoid placing the calculator near open water sources or air vents that carry dust, as both can degrade key response over time.
  • Replace battery annually: Even in hybrid solar-battery mode, the backup cell depletes gradually. Replace it every 12 months in heavy-use environments to prevent unexpected shutdowns in dim lighting conditions.
What is the Casio DJ-240 calculator used for?

The Casio DJ-240 is a 14-digit professional desktop calculator designed for office billing, GST and tax calculations, retail pricing, accounting, and business arithmetic. Its dedicated Tax key, Check & Correct function, and Grand Total memory make it well suited for financial desks, CA offices, retail billing counters, and institutional finance departments across Punjab.

What is the difference between the Casio DJ-240 and the DJ-120D?

The primary difference is display capacity and tax functionality. The DJ-240 offers a 14-digit display versus the DJ-120D's 12 digits, allowing it to handle larger figures without overflow. The DJ-240 also includes a dedicated Tax calculation key for storing and applying tax rates directly — a feature absent on the DJ-120D — making it more suitable for GST billing and accounting roles.

Does the Casio DJ-240 support GST calculations?

Yes. The DJ-240 includes a dedicated Tax function that lets you store any GST rate — 5%, 12%, 18%, or 28% — and apply it to any base amount with a single keystroke. This makes it directly useful for GST invoice preparation, tax component segregation, and billing verification in offices, retail shops, and accounting firms across India.

Can I buy the Casio DJ-240 in bulk with a GST invoice from Raju Stationery Mart?

Yes. Raju Stationery Mart supplies the Casio DJ-240 for both individual purchases and bulk institutional orders. GST-compliant invoices are issued on all B2B orders, making it straightforward to include this calculator in office, bank, school, or government department procurement. Local delivery is available in Ludhiana with supply across Punjab.

Why source calculators and desk essentials from Raju Stationery Mart in Ludhiana?

Raju Stationery Mart has supplied office stationery and desk essentials to businesses, schools, banks, hospitals, and government departments in Ludhiana since 1986. With genuine Casio products, competitive bulk pricing, GST billing, and reliable local delivery across Punjab, it provides the accountability and consistency that institutional procurement requires.

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brand Casio