.product-description { font-family: Arial, sans-serif; margin: 20px; } .specification-list { list-style-type: none; padding: 0; } .features-list { margin: 10px 0; } Description Introducing the Resistance Substitution Box, an affordable and versatile solution for your resistance needs. This product allows for a flexible and quick setting of resistance ranging from 1Ω to 9,999,999Ω, with a precise 1Ω step accuracy. Ideal for educational experiments, electronic engineering design, and test trimming, this box is a must-have for professionals and students alike. Specifications Product Name: Programmable Resistance Board Programmable Resistance: 0 to 9,999,999 ohm, adjustable in 1 ohm increments Resistance Tolerance: ±1% Rated Power: 1/2 Watt Max. Working Voltage: 200V Features Designed based on the "resistors series" theorem 1/2 Watt tolerance with ±1% SMD resistors High-quality FR4 glass fiber PCB for enhanced durability Comes with 7 spare jumper caps for convenience Package Includes 1× Seven Decade Programmable Resistance Board (1R - 9,999,999R)