HP 35S Programmable Scientific Calculator

Tackle complex calculations and programming tasks with the HP 35S, a robust scientific calculator trusted by students, engineers, and professionals. Featuring dual-entry logic (RPN and algebraic), two-line display, and programmable functions, this refurbished unit offers versatility and precision for exams, lab work, or field use.

Key Features:

• Dual-mode logic (RPN and algebraic) to suit varying calculation styles
• 54 KB user memory and 30 KB applications memory for custom programs
• Two-line alphanumeric LCD display for viewing entries and results simultaneously
• Built-in functions including trigonometry, statistics, regression, complex numbers, unit conversions, and more
• Fully programmable with 100 steps across 26 labels for automation
• Durable slide-on hard case for protection during transport and study

Refurbishment & Warranty:

• Professionally refurbished and fully tested
• Includes 90-day exchange warranty
• Keys, screen, and housing cleaned and inspected
• Firmware reset and verified for accurate calculations

What’s Included:

• HP 35S scientific calculator
• Digital user manual link

Ideal For:

• Engineering and math students preparing for exams (including those allowing approved calculators)
• Professionals needing reliable programming and scientific computation
• STEM professionals requiring durable and precise calculation tools
• Anyone upgrading or replacing an older scientific calculator with a high-performance model