HP-20S Scientific Calculator

The HP-20S Scientific Calculator is a versatile and reliable calculator designed for students, engineers, scientists, and technical professionals. Combining advanced scientific, mathematical, and statistical functions in a compact design, the HP-20S provides the power needed for complex calculations while maintaining the ease of use and durability that HP calculators are known for. Its clear display and intuitive keyboard layout make it an excellent choice for everyday academic and professional use.

Key Features

• Over 100 built-in scientific, mathematical, and statistical functions
• Trigonometric and inverse trigonometric calculations
• Logarithmic and exponential functions
• Complex number calculations
• Fraction and percentage functions
• Statistical analysis and regression calculations
• Base conversions (binary, octal, decimal, hexadecimal)
• Scientific notation support
• Algebraic entry system for intuitive operation
• Multi-line LCD display for easy viewing
• Compact, portable design with long battery life

Refurbishment & Warranty

• Professionally refurbished and fully tested
• All keys, display functions, and calculations verified
• Exterior cleaned and inspected
• Battery compartment checked for reliability
• Includes Porter Electronics' 90-day exchange warranty
• Optional extended warranty coverage available

What's Included

• HP-20S Scientific Calculator
• Free downloadable manual

Ideal For

• High school and college students
• Engineering and science courses
• Technical professionals
• Laboratory and research work
• Mathematics and statistics applications
• Everyday scientific calculations

The HP-20S Scientific Calculator delivers dependable performance for a wide range of technical and educational applications. Backed by Porter Electronics' refurbishment expertise and 90-day exchange warranty, it provides an affordable and reliable solution for advanced scientific calculations.