Unlike older monochrome calendars, the 2159t greets you with a bright, high-res display.
To keep the screen bright indefinitely, keep the device plugged into a USB power source and turn Sound Control "OFF." Troubleshooting Common Issues Color Screen Calendar Model 2159t Instructions
Some versions, like the one from Graflsoa , allow for power via a USB cable for a continuously lit display. Setting Time and Date Unlike older monochrome calendars, the 2159t greets you
Look for a small face icon. A "Happy" face indicates ideal humidity (40–70%), while a "Sad" face indicates air that is too dry or too humid. A "Happy" face indicates ideal humidity (40–70%), while
: Press MODE again to move to the next parameter (e.g., from Hour to Minute, or Year to Month).
: For a continuous always-on display, connect the device to a DC 5V power source via the provided USB cable or a compatible adapter. Displaying the Unit