Box with 7 positions

The K70 box is made up of two arms « a » and « b » of a Wheatstone Bridge. The two other arms form the resistance
« X » to be measured and the calibrated variable resistor « r ».
• At balance X = r a / b
• Number of scales k = a / b: 7 positions 0.001 - 0.01 - 0.1 - 1 - 10 - 100 - 1000
• Dimensions: 82 x 82 x 60mm.
• Double insulation