Title: This thing is terrible
Review: We purchased two of these units for doing some outdoor scientific research. After battling them all day the first day, trying over and over again to zero out the units, they are both unreliable. I don't know if some dirt got into the gears or what, but these things are not meant to be taken outside, or maybe not meant to be used at all! I would not recommend this for any type of work outside of recreation. Plastic and cheap. There is also a ton of play between where you put the measuring item in the calipers. You are taking a hit to your data by using these.
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