Abstract: An electronic instrument includes a rotary switch disposed to be rotated by the thumb of a user while the housing is gripped in the hand of the user. The rotary switch has a knob protruding from the front face of the instrument with a rotational axis centered approximately midway between longitudinal side walls of the housing. The rotary switch has a light rotational tension requiring a force of less than 300 grams for easy rotation by the thumb. Elastomeric over-molded side strips are attached along the longitudinal side walls and an elastomeric over-molded knob is attached along an indicator projection portion of the knob.

Abstract: An electronic instrument includes a stand having a first rigid leg portion pivotally attached to a housing via a first hinge. The stand further comprises a second rigid leg pivotally attached to the first rigid leg portion via a second hinge. A first pivot control mechanism secures the stand in a closed position. A second pivot control mechanism secures the stand in a first open position. A third pivot control mechanism holds the first rigid leg portion at a bent angle relative to the second rigid leg portion to secure the stand in a second open position. A fourth pivot control mechanism secures the stand in a third open position. The stand further comprises a section for hanging the electronic instrument when the stand is in the third open position.