Keyboard Test; Sensor Test; Real-Time Clock - ZKTeco F18I User Manual

2.4 inch color screen series User Manual
Press OK to continue and press ESC to exit.

7.3 Keyboard test

The device can automatically test various keyboards to see whether the
keys work normally or not.
Press any keyboard on the test interface (except for OK and ESC) to
check whether the pressed keyboard is in accordance with that displayed
on the screen.
Will appear whether it is the right key, and will appear whether
it is not the right key.
Press ESC to exit.

7.4 Sensor test

The device will automatically test the sensor to see whether it works
normally. Press fingerprint to see whether the image is clear and usable.
Press fingerprint on the sensor window and the fingerprint image will
appear on the screen.
Press ESC to exit.

7.5 Real-time clock

The device can automatically test the clock to see whether it works
normally.
Press OK to start time and then press OK to stop time.
Press ESC to exit.
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