Copper-Iron Thermopile Lab Supplies_Tongs 5/6/9/12V at up to 1A

5/6/9/12V at up to 1A

reconfiguring the demonstration meter as a low-voltage voltmeter for single-cell and battery-pack readings

Clear-coated wooden A-ramp at 17 inches long paired with a double-ended cone roller that appears to travel uphill while its center of mass actually descends along the diverging rails

holding twelve tubes up to 22 mm diameter for classroom and professional bench setups

Copper-Iron Thermopile Lab Supplies_Tongs 5/6/9/12V at up to 1ASeven junction copper and iron thermopile from four 130mm wires of each metal, the series arrangement amplifying the Seebeck voltage for radiant heat detection experiments.