Fig. 3

A traditional crochet hook (hook size 3.5) with a yellow handle and a crochet hook multimeter probe (hook size 1.5) with a blue handle and custom-made multimeter cable. The blue crochet hook is connectable to the multimeter cable through a mini banana plug that goes into a mini banana jack at the end of the crochet hook. The multimeter cable on the other side connects to the multimeter