This is the "resistor replacement box", a low cost alternative solution, you can set flexible and fast resistor between 1R and 9999999R, 1R step precision. For educational experiments, electronic engineering design or test clipping are great applications.
Design based on the resistor series theorem.
1/2 watt tolerance +/- 1% SMD resistors.
High quality FR4 fiberglass PCB.

Specification:
Maximum operating voltage: 200V
colour: green
Material: PCB
size: 90 x 35 x 10mm

Package Contents:
1 x Resistor Board