The RECLINE Inclinometer Sensor unit contains a ±30deg inclinometer sensor for measuring angle and a powerful yet eye safe and legal a >5mw Class 3R 532nm (green) laser.  The laser can be used to ensure that your speakers are pointing at the very last seat in of the audience. Best of all, it can fit directly into many manufactures bumper bars, grid and flying frames.  L-Acoustics K1, K2, KARA & KIVA and the d&b T & V series, Nexo STM to name but a few.