Item Type: Programmable Resistor Programmable Resistance: 0 to 9,999,999 ohm, 1 ohm per step. Resistance Tolerance: 1% Rated Power: 1/2W Maximum Working Voltage: 200V Product Size: Approx. 90 x 35 x 10mm / 3.5 x 1.4 x 0.4in 1Resistor Board: An alternative solution for resistance replacement box that flexibly and quickly set the resistance range from 0R to 9999999R. 2Many Advantages: Based on series resistance, the programmable resistor board has 1/2W rated power and 1 resistance tolerance, very reliable. 3High Accuracy: The step accuracy of the programmable resistance board is 1R, and the high accuracy will add more convenience to the adjustment. 4Wide Application: Allows for flexible application on educational experiment, electronic engineering design or test fine tuning, very practical. 5Premium Material: Adopting premium circuit board, has great durability for long term use, and the installation is simple to complete as well.1 x Programmable Resistor