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  1. #1
    Join Date
    Sep 2006
    Location
    Ohio
    Posts
    496

    Digital Manometer

    I would like to get a digital manometer that will also read negative pressures since I work on a lot of Trane RTU's. Several guys have told me that the digital manometers are not very accurate. I usually use a water tube manometer, but it keeps freezing up. Does anyone know of a good digital one that you would recommend?

  2. #2
    Join Date
    Jun 2014
    Location
    Dover, DE
    Posts
    1,629
    Do a search, it's quite a common question around here. Feildpiece and Testo are the most popular.
    I'm getting ready to place an order for a Feildpiece SDMN6 with the built in pump for testing pressure switches.

  3. #3
    I have the Testo 510 and just purchase the Fieldpiece SDMN6 for testing pressure switches both are great products.

  4. #4
    Join Date
    Aug 2006
    Location
    Mixing oil and fire with a big spoon.
    Posts
    4,524
    A Dwyer red guage oil manometer is about as accurate as any of the digital units out there except the Fluke 917(?). I only went to the Fluke because it was more accurate than the Dwyer and I got tired of not finding the oil.

  5. #5
    Join Date
    Sep 2006
    Location
    Ohio
    Posts
    496
    Quote Originally Posted by roaddog320 View Post
    I have the Testo 510 and just purchase the Fieldpiece SDMN6 for testing pressure switches both are great products.
    What I have read about the Testo 510, it doesn't read negative pressure. Is this incorrect?

  6. #6
    Join Date
    Jun 2014
    Location
    Dover, DE
    Posts
    1,629
    Do you do things nice because you do things twice?

  7. #7

  8. #8
    Join Date
    Sep 2007
    Location
    edmonds wa
    Posts
    414
    Check on Dwyers website looks like you can buy direct from them.

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