RadioLink RC8X Instruction Manual page 23

Video for How to connect R8FG correctly for telemetry
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1.3.3.3 Low Model Voltage Alarm Setting
The low model battery voltage alarm is default 6.6V, if the voltage of model battery is
lower than 6.6V, the transmitter will alarm with sound "low engine battery voltage", please
change the battery when you heard the alarm, the value of low engine battery voltage alarm can
be set in the Telemetry menu according to your battery that powered for your model.
Setting steps: turn on your RC8X, click the button
System menu,, click
click Sensor setting, click the blue select box named
EXT voltage to change the alarm value, click "-" to
reduce the number and click "+" to increase the
number. If you use a 3S LiPo battery to power for
your model, then the alarm voltage number do not
lower than 3.7V*3S=11.1V, 4S LiPo battery do not
lower than 14.8V.
Reset: click Reset will make the alarm voltage number back to 6.6V.
Back: click the button
Current: it defaults 0, if the RC8X bind to receiver success, and connect the telemetry cable to
the model battery, the real-time model voltage will show here.
into Telemetry menu,
or short press the power button to return to the previous menu.
22
RadioLink Electronic Limited
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at the left bottom of RC8X into