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0-99999.9 Ohm Simple Resistance Box Precision Variable Decade Resistor Teaching Instrument Teaching Resistance Box
0~99999.9 Ohm Adjustable Variable Resistance Box Decade Resistor Experimental Equipment For Physical Resistance Box Teaching
Resistance Box 0-9999.9 Ohm Adjustable Lab Resistor Substitution Box Precision 1W Variable Knob Switch Decade Boxes
Digital Audio Impedance Test Meter Speaker Voice Resistor System Ohmmeter LCD display All Sun model EM480B
ALL SUN EM480B Audio Impedance Tester Portable CATIII Test Ranges 20/200/2000 Resistance Meter 1KHz Timer Function Data Hold
0-99999.9 Ohm Simple Resistance Box Precision Variable Decade Resistor Teaching Instrument 0-9999 Ohm 0-9999.9 Ohm Resistance
Precision Resistance Box 0-9999Ω/0-9999.9Ω Adjustable Decade Resistor Teaching Instrument for Physical Teaching Experiment Tools