| Part | Servo Tester |
|---|---|
| For Vehicle Type | RC Helicopter Airplane Car |
| Brand | HJ |
Check the listing for details. HJ Digital Servo Tester / ESC Consistency Tester RC Helicopter Tester Tool. Condition: New. Listed at 11.20 USD. With PPM signal test function in the display, the input PPM signal changes while the input the PPM signal synchronization output to the servo. 50H analog servo signal cycle 20us frequency 50Hz. 125H digital servo signal cycle 8us frequency 125Hz.