Sealed. Mr. Pen Scientific Calculator with Guide
Updated September 25, 2026
| Lot number | 40 |
| Auction | NEW & OPEN BOX ELECTRONICS AUCTION. Bid start at $1, $3 & $5 |
| Date | October 2, 2026 at 7:00 PM CDT |
| Auction house | Auction Armadillos |
| Location | Fort Worth, Texas |
Sealed. Unlock your mathematical potential with this reliable Mr. Pen Scientific Calculator! This powerhouse tool is designed for complex tasks, supporting advanced operations including basic arithmetic, standard deviation, and regression calculations. The intuitive interface features a dedicated replay button, shift and alpha modifier keys, and specialized keys for trigonometric, logarithmic, and exponential functions. Whether you are performing fraction conversions, managing negative exponents, or conducting statistical analysis, this calculator provides the versatility you need. This lot includes the comprehensive instruction guide to ensure you master every mode and operation with ease. Built for durability and precision, this is the essential companion for any student, engineer, or math enthusiast looking to streamline their workflow.
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