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    Water proof sensor

    I want to use a sensor to measure the water temperature of my pound.
    What is the best way to make it waterproof?
    Peter

    http://ohh.pcgsm.nl

    #2
    Few things that come to mind which may or may not work.

    Wrap it in selfamalgamating tape
    Heatshrink it and then superglue the ends
    Put it in some sort of small container and superglue the opening

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      #3
      As Lawrence has stated, I use heat shrink tubing but the adhesive lined variety. This makes a total water tight seal.

      You can even get heat shrink end caps.

      Example: http://www.printasleeve.co.uk/adhesive.asp
      Jon

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        #4
        Originally posted by jon00
        As Lawrence has stated, I use heat shrink tubing but the adhesive lined variety. This makes a total water tight seal.

        You can even get heat shrink end caps.

        Example: http://www.printasleeve.co.uk/adhesive.asp
        What do you thinks the best way of sealing it? I tried a hairdryer to no avail, a lighter seems to work but i have to be very careful not to melt it or set it on fire :|

        Comment


          #5
          Well a proper heat gun is the best (even a paint stripper variety) but you can also use those mini-blow torches to good effect (from a distance)

          http://www.maplin.co.uk/Search.aspx?...e=9999&SD=true


          http://www.maplin.co.uk/module.aspx?...46221&doy=19m2
          Jon

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            #6
            The one I have in my pond is a small tube filled with silicone rubber such as the material used for calking. Water temperature does not change very quickly so the insulating nature of the silicone does not detract from the temperature measurements for this type of application. The tube I happen to use is the end of a 1/2" copper pipe that is closed at one end. These are used by plumbers on new installs for the rough-in before the fixtures are added. The copper tube provides good mechanical protection to the sensor.

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              #7
              My water sensors are like Michaels. I used a small test tube that came in the kids chemistry set. Then filled the tube with clear silicone caulk.
              💁‍♂️ Support & Customer Service 🙋‍♂️ Sales Questions 🛒 Shop HomeSeer Products

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                #8
                Originally posted by Rupp
                My water sensors are like Michaels. I used a small test tube that came in the kids chemistry set. Then filled the tube with clear silicone caulk.
                And how do your children feel about you stealing their educational tools

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                  #9
                  Is the test tube glass - that would worry me about breaking. I like the small copper tubing better for durability and it would conduct temperature changes better.
                  Bruce

                  "The universal answer is 42."

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