Garnet SeeLevel I 705 Series Manual page 7

2. If another button (including BATT or LPG) is pressed before the 5 second
time is up for the first button, the display will immediately switch to
showing the new level or voltage. The 5 second timeout is restarted
every time a button is pressed.
3. To continuously display a reading, press and release the desired button,
and then press the same button a second time. When the button is
released, the display will be in hold mode, which is indicated by the bar
graph flashing on and off. While the display is in the hold mode it will
recheck the level once per second so the user can watch the level
change while the tank is being filled or drained. The display will
automatically shut off after 5 minutes in hold mode. To end the hold
mode before the 5 minutes is up, press any tank button, and the display
will shut off.
To read the battery voltage:
1. Press the BATT button and release it, the display will show the battery
voltage on the LED bar graph.
2. If no other button is pressed, then the display will shut down after about 5
seconds. If the BATT button is held down, the display will continuously
recheck the voltage and show the updated value.
3. If another button is pressed before the 5 second time is up for the BATT
button, the display will immediately switch to showing the value for the
new button. The 5 second timeout is restarted every time a button is
pressed.
4. There is no hold mode for the battery voltage.
To read the LPG tank level:
1. Press the LPG button and release it, the display will show the level on
the LED bar graph. If no other button is pressed, then the display shut
off after about 5 seconds.
2. If the LPG button is pressed again, a new reading will be obtained and
displayed, and the 5 second timer will be restarted. If the button is held
down, the existing reading is held for as long as the button is pressed,
and the display will shut off 5 seconds after the button is released.
3. If another button is pressed before the 5 second time is up for the LPG
button, the display will immediately switch to showing the new level or
voltage. The 5 second timeout is restarted every time a button is
pressed.