See what you've been missing! Exclusive from Model Avionics,
the new X-treme Tach Optical Tachometer allows anyone to
monitor their helis rotor RPM. The X-treme Tach Optical
Sensor has a range of 1000 to 2400 RPM with 1%
accuracy.
Works on the ground and in flight! Easy to use
controls allow your 'assistant' to give you accurate
readings every time. Includes 30 second auto shut-off, which
means you'll never be stuck in the field without it. Uses 9V
battery. X-treme Tach Optical Tachometer shown below
with view through the shutter. ~ Instructions (PDF) |