A good and inexpensive instrument to quickly find the desired satellite (Astra with me). After I set the protractor the satellite dish to the required elevation angle (! Note corresponding to 1.5 degrees on the protractor, operating in our area at about 31.5 degrees), the alignment was in South - no longer a problem southeasterly direction. The optimal setting is optically and acoustically displayed on Satfinder. The Satfinder worked just fine, so a strong buy recommendation :-)