Torxis 高トルク ダイレクトドライブ パン/チルト機能搭載（サーボ付き）

I'm a mechanical engineering student, and I made a wind turbine testing rig including this assembly for my Honors Senior Thesis. Everything was very easy to use right out of box. The only slight setback was that these motors do not work directly with Arduino's servo toolbox. I set my own PWM scale after sampling a few desired angles to get my inputs to match my outputs (I'm not motor expert but this got the job done). These also aren't perfect where highly precise angles are necessary - there is a good amount of wiggle for each increment. Perfect for my use though. Overall, great product!