Actually I encounter the same problem with my OWON 18B multimeter. Today a package of components arrived with no labels. I need to measure the resistors myself. I can't get any valid data. The meter eighter counts all the way back to zero, or measures mego ohms or ohms. I havent used it much, the battery is new, and its advertized at Amazon as high value ![Frown :( :(](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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Moderator edit: New thread created from this.