The clock can be bought on Amazon.

Change Brightness

• During ‘Normal’ mode, press and hold the ‘Up’ button for about 3 seconds to enter into luminance adjustment setting.
• Once completed, press and hold the ‘Up’ button for about 3 seconds to exit setting.

Keep From Falling Asleep

• Press the down button till it displays -sd this turns off the sound activation. I have mine plugged to an outlet and it stays on all the time. Select L2.

Rotate Date and Time

• Just click the “set” button until it shows “dp2.” Display 1 rotates from the date to the time & display 2 keeps the time on the clock face.

Temperature Change

• Pressing the "UP" button will toggle between degrees C and degrees F.