Feature

●a selection of professional variable resistance box, which has good stability and high accuracy.
●Great instrument for learning physical and electrical experiments, easy to operate.
●The variable resistance box teaching instrument is suitable and wonderful for school, laboratory use.
●The contacts resistance is stable and reliable when the resistance box is properly used to rotate each group of knobs.
●Made plastic material, safe and durable, which could be used for very long time.


Description

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- Size: 14X10X5CM.

Package Including
1 x Variable Resistance Box