Abstract: A digital multimeter includes a display for displaying a measured parameter, a selector for selecting the measured parameter, at least one jack configured to receive a test lead plug, and a housing assembly including the display, the selector and the jack. The selector includes a push button, a rotary selector switch, a knob coupled to the rotary selector switch, and a cover molded over the knob. The cover includes a relatively soft material compared to the knob. The housing assembly includes a first and second housing portions coupled together, a gasket sealing the first and second housing portions, and a jacket overlying parts of the first and second housing portions and the gasket. The housing assembly defines an internal cavity and is configured to absorb impact energy in response to dropping the digital multimeter up to approximately one meter and protect against water and dust ingress into the cavity.

Abstract: A digital multimeter includes a display for displaying a measured parameter, a selector for selecting the measured parameter, at least one jack configured to receive a test lead plug, and a housing assembly including the display, the selector and the jack. The selector includes a push button, a rotary selector switch, a knob coupled to the rotary selector switch, and a cover molded over the knob. The cover includes a relatively soft material compared to the knob. The housing assembly includes a first and second housing portions coupled together, a gasket sealing the first and second housing portions, and a jacket overlying parts of the first and second housing portions and the gasket. The housing assembly defines an internal cavity and is configured to absorb impact energy in response to dropping the digital multimeter up to approximately one meter and protect against water and dust ingress into the cavity.

Abstract: An instrument for testing an electrical circuit includes a housing, a printed circuit board disposed within the housing, and at least one probe in electrical communication with the printed circuit board. The instrument further includes a plurality of panels disposed within the housing, wherein each one of the plurality of panels has an indicator. Each of the plurality of panels is capable of being activated into an on state in response to an electrical measurement. When at least one of the plurality of panels is activated the indicator on that panel substantially corresponds to a magnitude of the electrical measurement.