OGRC RC Digital Servo Tester/ESC Consistency Tester for RC Helicopter Airplane Car(Servo Tester,ESC Consistency Tester,RC Helicopter Tester Tool)

Handy little gadget to use to preset servo to neutral before installation. It also checks moves the servo through a significant portion of the range, which is also useful during installation. If needed, you can set the servo to a specific position anywhere within its range.It also allows up to four servos to be synchronized to the same position.

Didn't know what to expect when I ordered this device. It turns out to be very useful. I especially like the ability the 'center' up to four servos simultaneously.It doesn't take up much space in my small work area.Great value!

This is a very nice servo tester 👍

Love this little guy, Just what's with the pin diagam?

This has been the BEST style of these testers I’ve had to so far. ((Yes your eyes aren’t deceiving you, I have stuck a RC Brushless motor (Surpass Hobby Rocket 4268) into a Makita Blower (XBU05) and a 130A FlyColor ESC with the FlyColor WiFi chip)) Don’t waist you time and money with those blue wrapped ones with the board exposed trying to save a buck. Those other ones have let their smoke out on first test well within their voltage specs. Some of the others have quit simply by adjusting the pot, others have shorted out my equipment.I’ll update my review should anything change , but so far this is the best I’ve ever used ( for reference my usage of this device will be multiple times a day 5-7 days a week for the foreseeable future)

I had the motor in a stopped position, then I pressed the select key and the motor went to full speed in and destroyed the thing I had attached, sending pieces flying, gouging the table, probably could have killed me, almost destroyed a camera too. My suggestion for future improvements is, don't instantly go to 100% motor when someone presses a button but ramp up slow enough so that the battery can be disconnected.

I tested this on an oscilloscope because I wanted to see how close it was to a real system. I was pretty impressed with how accurate this tool is. The PWM signals were about as accurate as you could hope for without a better trim pot (adjustment knob). So I would have to give this little unit big thumbs-up. It's small and cheap enough to keep in your tool box. Never had the need for one before, but this is well worth it.

Product failed 2nd time using it. I would like to have exchanged, but apparently not because I reported on 31st day. Questionable quality for a simple Chinese product.