These bubble levels are normally used as a spirit level on the hot shoe of a DSLR Camera.
I find these can be quite usefull hot glued onto your quad copter frame when leveling the gyro's and accelerometers.
They are also great mounted on a brushless Gimbal to ensure you footage will be dead level.

You could also use them as intended as a spirit level on your camera.

Bubble spirit level

  • Product Code: spirit bubble
  • Availability: In Stock
  • USD$1.56

  • Ex Tax: USD$1.41

Tags: bubble spirit level