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.

Features:
Design based on “resistors series” theorem.
1/2 watt tolerance +/-1% SMD resistors.
Screw terminal block easy to connect wires.
High quality FR4 glass fiber PCB.
With spare parts 10 pieces jumper caps (on board 7 pieces, total 17 pieces).

Programmable Resistance: 0 to 9,999,999 ohm, 1 ohm per step.
Resistance Tolerance: +/-1%
Rated Power: 1/2 Watt.
Max. Working Voltage: 200V.
PCB Size: 110mm x 40mm / 4.4" x 1.6"
　

Package Include:
2pcs x Programmable 1R - 9999999R Resistor Board