i have the 2000 model,haven't owned it for very long but with the limited experience i have, i'm very pleased so far. in bright sunshine, middle of the day i've registered over 1600 on houses. over 2200 in the rain off road signs. i would say you have a bad one and would try to get it replaced. even the good ones aren't so good some of the time.have heard of Swaro's getting sent back for a replacement.