Abstract: The disclosed technology includes an asbestos abatement device that includes a housing defining a housing cavity. The asbestos abatement device may include first and second inlet ports and a negative air machine outlet coupled to the housing, and a processor coupled to a circuit board positioned inside the housing cavity. The first inlet port may be configured to measure a first pressure of an asbestos containment environment and the second inlet port may be configured to measure a second pressure of an external environment. The processor may be configured to receive first and second pressure data from the first and second inlet ports, respectively, determine a pressure differential between the asbestos containment environment and the external environment based on the received first and second pressure data, determine whether the pressure differential is at or less than a threshold value, and transmit a signal to the negative air machine outlet.

Abstract: A network jack includes a connector, an outer housing, and a circuit board. The connector receives a plug for conveying Ethernet network signals. The connector includes conductive leads disposed on opposite sides of a central bar. The connector has a connector housing formed in part by a plurality of walls defining an interior, wherein the central bar is disposed in the interior, and spaced part from each of plurality of walls. The outer housing is disposed about and contains the connector housing, and has a width approximately equal to a width of a housing of the plug. The circuit board is disposed within the housing, and supports a plurality of transformers and/or common-mode chokes. The circuit board provides at least a portion of an electrical connection between the conductive leads and the transformers and/or common mode chokes.

Abstract: A method and apparatus for facilitating user interaction with a measurement instrument displays a control knob glyph corresponding to a user-adjustable parameter of the measurement instrument, the control knob glyph having an indicator and a partially circular drag area through which the indicator can be rotated. Inputs indicating amounts of rotational movement for the indicator can be received, and the location of the indicator within the drag area and the value of the parameter changed in response to such inputs.