The unit is a little clunky. Hard to tell how big the accelerometer
actually is in the photos. Appears someone would need to fabricate brackets
to set up on Lyc. and Cont. engines and the sensor cable doesn't look
durable. The manual doesn't give much explanation of weight method
correction.

However for only 1300 Euros its not a bad deal at all for simple prop
balancing.
Probably just as accurate as C&H or ACES or DSS.

Kent Felkins
Tulsa
For a relatively inexpensive prop balancer, try these guys:

http://www.smartavionics.com/