Abstract: Devices and methods of measuring a loaded weight of a vehicle are disclosed. The device may include a sensor assembly configured to detect pressure in the at least one air spring. The device may additionally include a solenoid valve assembly disposed between the sensor assembly and the at least one air spring and configured, when the sensor assembly is not detecting the pressure, to isolate the sensor assembly from the pressure in the at least one air spring while not isolating the at least one air spring from the pressure source. The device may further include a processor assembly configured to calculate a loaded weight of the vehicle based on the detected pressure, and a display assembly configured to display the calculated loaded weight.