Programmable resistor, which can replace the sliding rheostat. The resistance value can be programmed at , making it a good helper for your experiment. Each order of magnitude can be configured by a jumper cap with a coefficient of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. The total resistance value of the resistor module is equal to the sum of the resistance values of each order of magnitude. This adjustable resistor is suitable for various occasions that require variable resistors, such as: amplifier circuit configuration, DCDC power supply feedback resistor configuration, bridge circuit testing, and other weak current application scenarios. This adjustable resistor is composed of 8 different order levels of resistance chain units in series. The 8 orders of magnitude are: x0.1Ω, x1Ω, x10Ω, x100Ω, x1kΩ, x10kΩ, x100kΩ, x1MΩ. The product is exquisite, small and convenient for experiments. Plug and play, no need to change experimental instruments back and forth., Weight: 0.05952481074 pounds, Manufacturer: Gishbjka