Abstract: The present invention includes a portable, damage resistant, palm-held, low cost, high sensitivity ergonomically dimensioned digital remote gauge assembly unit for the measurement of external parameters that include by way of example temperature, pressure, and vacuum; a kit having a digital remote gauge assembly unit, a variety of probes and adapters that provide for the communication signals to the unit in response to externally measured parameters, and a communication link between a respective probe and the digital remote gauge assembly unit; and, a method of utilizing the kit and device to facilitate the rapid measurement of a variety of external parameters. The digital pressure gauge includes a gauge body dimensioned to be held in the palm of a user's hand. The gauge body has microprocessor controlled circuitry therein, an altitude and temperature compensated pressure transducer in communication with the microprocessor, and keys for actuating the microprocessor.