**Firmware 1.6: Select the “Linear 0.5v-4.5v” Option for an output range of 0.5V to 4.5V, corresponding to a pressure range values of 0 to 100 PSI.
**Firmware 1.5 or Older: Select the “Linear” Option for an output range of 0.0v to 5.0V, corresponding to a pressure range values of -12.5 PSI to 112.5 PSI.