The keys are made from two different colored plastic injection moldings. The button markings are made of plastic, which means they won't wear or fade with use.

*Excluding [M/EX], [TAX+] and [TAX−] keys.

Button cross section

Key configuration and keycap shape

The buttons are ergonomically designed to match natural finger movements.

Anti-slip structure

Large rubber pads on the bottom of the computer prevent slipping during operation.

function instruction symbol

On-screen symbols (+, −, ×, ÷) indicate the status of the operation you are currently performing.

Solar energy and batteries

When the light is sufficient, it is powered by solar energy, and when the light is insufficient, it is powered by batteries.

Silent touch keys

Compared to previous CASIO computers, the keys are specially designed to operate silently, helping to maintain a more comfortable working environment.

Three-key fast input response

Keystrokes are stored in a buffer so no data is lost even during high-speed input.

Specification
Basic Information
Product type Desktop	Feature Exchange rate calculation Tax calculation Metal panel
Number of digit 12-digits	LCD Screen Extra Large display Arithmetic display Number separator
Key Features Dual built-in durable buttons Plastic buttons Ergonomic step keys	The main function Quick input Reverse key (▶) Positive and negative value conversion (+/-)
Memory Total memory (GT) Independent memory	Power Supply Dual power (solar/battery) CR2025x1
Dimension(depthxwidthxheight ) 188 x 140 x 35 mm	Weight 295g

Display setting
Display format setting Decimal selector (4/3/2/1/0/ADD₂) Rounding selector (F・CUT・UP・5/4)


Computing function Basic calculations Percent calculation (%) Profit percentage Root sign calculation (√)	Applied computing Exchange rate calculation Tax calculation

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CALCULATOR - Casio DE-12E-BK Extra Large Display Ergonomic Heavy Duty Calculator (Black) - DE-12E-BK

Function

Extra large display

Durable fade-resistant buttons