159 • Appendix A: RK Link Phone App GX-3R Pro Operator’s Manual
2. Press “Gas detector setting”.
3. Type in the password and press “OK”. The password depends on your instrument settings.
• For brand new instruments whose User Mode Password parameter has not been adjusted,
the password is 0000.
• If you turned your instrument’s User Mode Password on, the app’s password is your
instrument’s User Mode password.
• If you turned your instrument’s User Mode Password on but then turned it off, the app
password is still the instrument’s old User Mode password. The app password does not go
back to 0000 after you turn off the instrument’s User Mode password.