A digital multimeter comprises a rotary switch and a rotary switch memory. The rotary switch can be moved between a plurality of positions to change the function performed by the digital multimeter. When the rotary switch is in a particular position, a user can change the function currently associated with that position from a default function to a non-default function. Thereafter, when the user moves the rotary switch away from the particular and then subsequently moves the position back to the particular position, the multimeter resumes the non-default function without requiring further user-input.