ITEM NAME:Professional EK2-0907 Updated Servo Tester Server Electronic Speed Controller Z a.imagelink a:hover.imagelink {color:#db3606;.1 x Servo Tester. It can easily connect the ESC and test the working status of the ESC or Motor. Signal:1.5ms ±0.5ms. Static current:3mA (5.0V) ta=25 C output. Consumption:15mA(Current 5.0V).