Fly for Fun

.T. Power Model Profession RC Motor Digital Optical Tachometer

--Sharp backlit LCD screen, applicable under poor light condition.--220mah removable lithium button battery not included.--Compact & extremely portable.--Automatically shutoff when signals are not detected within a muinuteDimension: 90 x 54 x 16mmWeight:39gUp to 99,999rpmGT Power tachometer can measure 2 to 9 blade propeller speed, up to 99999RPM.Built-in button batteries, easy to use, simply open the switch, selecting the number of propeller blades, about 5 ~ 10cm away from the rotating propeller alignment can start reading, after the measurement, the screen will display the maximum value measured is fixed, there is blue color backlit, easier to read.Please note that during the measurement, the speed will beat is normal, so please keep stable the measured power systems and speed tables as possible in order to ensure accurate readings.* All of the above information and pictures are reference only. Color may be changed.