Smart I Duo - IR LED; Shutdown Time; Key Tone

4.3.9 IR LED
4.3.10 Shutdown Time
The shutdown time feature allows you to delay when the unit shuts down after the power
off button is pressed.
The delay can be set to off, 1 minute, 3 minutes or 5 minutes. If set to off, the unit will shut
down immediately.
4.3.11 Key Tone
The key tone option allows you to turn the beep sound on or off when the buttons on the unit
are pressed. The default for this option is OFF.
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This option allows you to turn the IR LED’s on or off. Alternatively, you can choose auto and the
LED’s will come on automatically when light levels are low.