GT POWERYoungRC Servo Tester Multi 3CH ECS Consistency Speed Controler Checker CCPM Master for RC Helicopter Car Boat

Product is good and as I had to return it since I was looking for the one that would have a display on it

Having this for less than a year, I cannot address how long this little G.T. Power Servo Tester will last. Nonetheless, it is so much easier to test a servo BEFORE connecting it to an ESC, battery, receiver, transmitter... It's a handy device to keep nearby when working on radio controlled gizmos.

I like the metal case which makes it more durable and easier to handle unlike some less expensive testers that are just a circuit board wrapped with a mylar or plastic cover. It has only one down side, you can only connect to three output connectors. Works good and got here fast!

Used to set up 1.7g servos for a radio dethemilizer for a P30 rubber powered airplane. Used a single cell 100 mAh 3.7 volt battery pack. Worked perfect to set it up before mounting in a plane.

This server tester works pretty well. It seems to be a little uneven on the range wipe function. It is solidly built, according to the guys at the field is better built than some. It is pretty tiny. Works great powered by the BEC/throttle wire from an ESC.