simple resistor holder for safe usage of small resistor like addon for multimeters, which doesn't have battery test function. resistor 360 ohm soldered to thicker wires with insulation (diameter 3mm outside of insulation) for rough handling - there are 2 small teeth in opposite of each wire channel for thick wire holding
switch multimeter to 200mA range and good 1.5V battery should report 4.0mA and more and 9V battery should report 25mA and more of current
https://cad.onshape.com/documents/155ed3479a2aa6dc4b68e70c/w/3976c3462a899b4653a25638/e/2ad3561f87cfd3e37d5bfd90
The author marked this model as their own original creation.