My experience with the 8X30 Swaro. is quite a bit different from those I have read so far . I got my first one at the end of September . I was looking for 3 things : 1. Repeatable Readings taken one after the other . 2. Repeatable Readings taken from the same Place to the same Object day after day . 3. Ranging to 1500 Yards . Swaro. No.1 did not repeat on consecutive Readings or from day to day , and I'm talking of hundreds of Yards . Suggestions were : bad battery , unstable rest , intersecting foreign objects being picked up . I eliminated these one by one . I sent No. 1 Swaro to the Rhode Island Faciity . I received Swaro No.2. : Same results . By this time I was wondering what the heck was going on . I sent No. 2 back , and received Swaro. No.3 . I just completed some tests and it is working fine . Tested it on 4 different days ( both overcast & sunny ) at ranges of 1000 to about 1400 Yards ....can't find the darn data at this time . Anyway , Bottom Line : if you buy one of these Units and it does not Repeat ( or you have to hunt & take multiple shots to get a Reading .....don't give up . There are no Repair facilities in the US , but the Swaro. USA folks have been co-operative and have sent new replacement Units .