OpenTX
- Display the main view screen
- Press MENU
- Press PAGE repeatedly till the TELEMETRY screen is displayed
- Scroll down to a sensor you want to rename
- Press ENTER
- Press ENTER again
- Scroll to change the characters
ENTER to move to the next character
- Press EXIT to finish editing
Or if on the last character pressing ENTER will stop editing
- Press EXIT
- Press EXIT repeatedly till you get back to the main view