Satellite Finder/ Signal Level Meter
As the others mentioned, your intended use should really dictate your choice of sat finder / signal level meter. If this is a one time install, I wouldn't recommend spending a lot of money. However, if you are planning on being an installer long-term, I would look for a reliable, heavy-duty durable meter with good battery life. There are several options, of course:
1) a meter that will only display relative signal strength (such as the Sat Buddy meter line or Accutrac or the cheaper generic Sat Finder).
If you're planning on doing more complicated installs where it's difficult to find the correct satellite, you'll want to consider
2) the meters that are capable of Positive ID and can LOCK on the bird (such as the Super Buddy or Birdog or Sat Hawk). When considering these units, I would look for one that is easy to use, displays signal quality as well as signal strength, is rugged, has good battery life, and has a good large database of satellites to choose from. These meters will be more expensive, obviously, but will save you time and money in the long run.
I hope that helps.
Scott Haywood