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  1. #1
    Join Date
    Jan 2011
    Location
    Highland Park, CA
    Posts
    88

    Confused Testo Hygrometer stuck in C*

    Anyone know how to change the testo 502 Hygrometer from C* to F*. I don't have the manual on me, and it switched in my bag. Thanks

  2. #2
    Join Date
    Jan 2005
    Location
    Akron
    Posts
    1,203
    If you mean a Testo 605-H2, press and hold the power key when you turn it on and toggle through the units of measure and set them.
    JLB,

  3. #3
    Join Date
    Jan 2011
    Location
    Highland Park, CA
    Posts
    88
    Thanks Jim, I did mean the 605-H2. I switched it back. It made me realize how much I use it.

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