KAISER 6384 DIGITAL SPIRIT LEVEL (ACTION LEVEL)

For those looking to confirm accuracy in either horizontal levels or even to the vertical, this little device is a useful added item to our video recording kit.
The pair of batteries already inserted into the device when it arrived were flat (hence only 4 stars), but the item comes with another 4 in the packaging.

A useful feature is the ability to vary the brightness of the LEDs.