
Electricians need to be able to test connectivity in a circuit without getting electrocuted, so they carry a continuity tester with them at all times. Safety is paramount when working with high voltage.
In 7 colors.
Laser-cut in reusable mylar from $40, ships in 2 business days.
7 layers, ready to cut on a laser cutter, Cricut, Silhouette or plotter. Unlimited personal use.