How do I display temperature from a TMP100 on the Maretron DSM250 Display?

You display temperature from a TMP100 using the DSM250 in the following way. Enter menu mode (press the enter or far right hand button), scroll to "Favorite Screen Setup…" and press enter. Scroll to the favorite screen where you would like to view the temperature channel and press enter. Scroll to data and press enter. Scroll to "temperature", and press enter. Scroll to the source you wish to display and press enter. Press enter again to select the type "numeric?" or "gauge?" and press enter. Press enter again for "Instance" scroll to the appropriate instance you wish to display and press enter.  Press the back key three times to exit menu mode and return to the normal viewing mode. Scroll through your screens to the Favorite Screen you selected for Temperature.
(Note: if a label was created for the channel you are attempting to display, the label would be visible in brackets next to the instance number. If a label was created but is not visible at this stage then your configuration is invalid. You may need to repeat your channel setup prior to completing a favorite screen.)