User Manual

16 SPEKTRUM TELEMETRY
RPM/Speed Sensor (Nitro)
An infrared sensor is provided to record rpm values that can be
converted by the handheld unit to actual speed in mph. 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 gear or 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 2mm screw, attach the sensor to the mount as shown.