Grand Wing Servo-tech Co., Ltd.

◆To measure the Pulse Width transmitted by Transmitter for up to 9 channels. ◆To measure the Pulse Width sent from Receiver.◆To test the rotations of Servo automatically – at the pulse widths of top, medium and low points set by user already.◆To test the automatic rotations of Servo.◆To test the rotations of Servo by turning the knob on the tester manually .◆To test the sensitivity of Servo (1μS per step minimum).◆To measure RPM of a spinning propeller – for 2 – 6 blades ones, real time RPM value shown／to set the peak RPM value up to 99990 per minute.◆Shiny 4 digits red LED's to display the values measured.◆Power source can be from UM-4 / AAA cell x4, or an adapter with 7-15V or BEC (5V) from an ESC.◆An output port for applying Positive/Negative signals of Pulse Width from this tester.◆Four buttons for setting up functions and modes.