Seven Decade Resistor Board 1R-9999999R Step Accuracy 1R 1/2 Watt Programmable Resistance SMD Module 
Description:
This is "resistance substitution box" good low-cost alternative solution, can flexible and quick setting resistance range from 1R to 9999999R, step accuracy 1R. for educational experiments, electronic engineering design or test trimming are excellent applications.

Feature:
Design based on "resistors series" theorem.
1/2 watt tolerance +/-1% SMD resistors.
High quality FR4 glass fiber PCB.
With spare parts 7 pieces jumper caps 

Specification:
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: 90 X 35 X 10mm/3.54 X 1.38 X 0.39"

Note:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3mm measuring deviation due to manual measurement.