Owner manual

21SPEKTRUM DX2S USER GUIDE
EN
INSTALLING THE TELEMETRY
SENSORS IN YOUR VEHICLE
SR3300T RECEIVER
SIGNAL AND RECEIVER BATTERY VOLTAGE
Telemetry signal strength and receiver battery voltage
are built into the receiver’s telemetry and no further
attachment of sensors is necessary. Telemetry signal
strength and receiver battery voltage will be displayed
when the transmitter and receiver are both turned on.
Note: The voltage displayed is the receiver
voltage. This is especially useful for nitro cars
in alerting you to change your receiver pack
before your vehicle goes into failsafe due to
low battery pack voltage.
Note: The receiver battery must be above 3.5
volts for proper telemetry operation.
RPM/SPEED SENSOR (NITRO)
Aninfraredsensorisprovidedtorecordrpmvaluesthat
can be converted by the transmitter unit to actual speed
in mph or km/h. The sensor emits an infrared light and a
receptor records the reflection vs. the absorption of light.
It is necessary to place a reflective or light absorbing
decal (provided) on the flywheel to allow the sensor to
record rpm. Mounting hardware is provided for easy
installation.
RPM/Speed Sensor Installation (Nitro)
• Choosethecorrectnitromountforyourengine.Two
mounts are provided: one for .12–.18 engines and
one for .21–.28 engines.
• Usingthe2mmscrews,attachthesensortothe
mount as shown.
Temperature Port
RPM/Speed Port