These questions are specific to the Leica LRF1600, and for those who own or use one frequently. I have searched and read dozens of threads looking for some specific answers to this range finder. I appreciate everyones ideas, experiences, and opinions about range finders. I am not looking for information on any other range finder even if it is better in every possible way. Would appreciate some info. if anyone can help with their personal experiences. 1. What battery does it take? 2. Is the angle finder accurate (similar readings) when compared to other angle measuring instruments? 3. Is the barrometric pressure reading accurate when compared to other measuring instruments? 4. Does the angle finder read in degrees? 5. Does the barrometric pressure read in PSI?