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很新鮮
不知戴了會不會頭暈
Digital Tachometer for RC Helicopters.
This is an original design that utilizes Liquid Crystal Shutter glasses
and a high accuracy crystal timebase controller that provides a
digital readout of the RPM to the nearest 10 RPM.
Simply slip on the LC glasses and observe** the helicopter in flight.
Adjust the control knob until the heli rotor blades appear to stop.
The current heli RPM can then be read from the controller display.
Unit features large field of view LC Shutter glasses, zero lag when adjusting
tach control knob, fully microprocessor controlled, long battery life,
no spinning disks or restrictive peephole viewing. Runs on 9v battery.
Comes with tachometer control unit, LC Shutter glasses,
9 volt battery, and instruction sheet.
measurement range is 500 to 2500 RPM |
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發表於 2009年1月25日 10:14 AM
