- This
upgrade will allow you to show Temperature in Fahrenheit or Celsius.
- This
upgrade will allow you show Humidity level on your sign.
- This upgrade MUST BE PURCHASED with PC Control option (either Wired or Wireless). Please refer to the upgrade page for more details.
- This upgrade is intended to be used with ONLY PC controlled type. Please refer to Remote Temperature option for Remote Controlled type.
** This
upgrade must be purchase with the sign. You CANNOT add this option at a later time, unless the sign is shipped back
to our facility.