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  • No temperature below 32F

    Is there a work around for this at all?
    I'd like at least 0F.

    Thanks!


    ~Bill

  • #2
    These were designed for indoor use. Are you using them in an unheated warehouse?
    -Rupp
    sigpic

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    • #3
      Good morning (PST) Rupp.

      No, it was for frontdoor motion / exterior light level / outside temperature monitoring, under cover and out of the rain of course.

      I was afraid of that answer, thanks!
      Maybe I need to get my 1-Wire network back running.


      ~Bill

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      • #4
        I would be nice for garages and sheds though.


        ~Bill

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        • #5
          True, I wonder what the specs list as the temperature range for this device?
          -Rupp
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          • #6
            I agree that they are excellnet for these locations, now the question is - is this a HomeSeer limit or a device limit?
            -Rupp
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            • #7
              I think I'll email Rich and see what he says.
              It is probably a combination of things.
              Thanks sir, have a good weekend!


              ~Bill

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              • #8
                Originally posted by Rupp View Post
                True, I wonder what the specs list as the temperature range for this device?
                -Todd

                ____________________________________________________________ ________________
                HS2Pro: 2.5.0.81 :: HS3Pro (beta) || Plugins:| SmartHome PowerLinc USB, Global Cache, BLBackup, DooCPU Monitor, DooMotion, BLOutlook, BLIcon, BLOutgoingCalls, OutgoingCalls, ROC-Rnd, HSTouch iPhone, UPS Monitor, DooMenuBar, BLSpeech, HSTouch Server, WAF AB8SS, mcsTemperature, VWS, BLChart, RFXCOM, ISY Insteon, iAutomate RFID, iTunes, NetCAM, DSC Security, Nest

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                • #9
                  There's our answer. Thanks Todd.
                  -Rupp
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                  • #10
                    Last edited by AdamH; November 11th, 2008, 02:23 AM.

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                    • #11
                      If you can keep it dry, the HSM100 will operate below 32F. It will report the temp readings just fine.
                      The problem is that if it goes thru freeze/thaw cycles, the chips on the PCB may get pried off by the ice that will form inside the HSm100. You can coat the PCB with a thin layer of epoxy to make it weather proof - of course that voids the warantee...

                      High temperatures are generally not that much of a problem but the temperature chip will not be as accurate outside of the range specified.

                      Battery life will be lower in both cold and hot environments.

                      I would not expect the HSM100 to detect the spinning blades of a fan. They probably spin too fast and there has to be enough IR behind them for them to block it so the HSM100 can detect the motion. It might work when the sun is out.

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                      • #12
                        Originally posted by Ericryherd View Post
                        If you can keep it dry, the HSM100 will operate below 32F. It will report the temp readings just fine.
                        The problem is that if it goes thru freeze/thaw cycles, the chips on the PCB may get pried off by the ice that will form inside the HSm100. You can coat the PCB with a thin layer of epoxy to make it weather proof - of course that voids the warantee...

                        High temperatures are generally not that much of a problem but the temperature chip will not be as accurate outside of the range specified.

                        Battery life will be lower in both cold and hot environments.
                        So in practice, what are the max/min temps that users have seen from their HSM100s? I'm considering one for my attic (to ensure my H/W circ pump is forced to run in freezing conditions and perhaps to control my vent fan in the summer). If a Z-wave sensor can't cover this range, then I'll probably go the 433MHz RFXCOMM route...

                        Thanks,
                        Don

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                        • #13
                          I've used two hsm-100's outside for two years (protected from moisture), and they work great, that is until I upgraded to HS 2.4.

                          In this new version, negative temperatures (which used to work), are really weird. It's -8f outside now, and my two sensors register 6,550.7 and 6545.7 degrees f.

                          I will open a ticket as this has to be a software error - they worked correctly in version 2.3.x.

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                          • #14
                            Originally posted by jjcrowley1 View Post
                            I've used two hsm-100's outside for two years (protected from moisture), and they work great, that is until I upgraded to HS 2.4.

                            In this new version, negative temperatures (which used to work), are really weird. It's -8f outside now, and my two sensors register 6,550.7 and 6545.7 degrees f.

                            I will open a ticket as this has to be a software error - they worked correctly in version 2.3.x.
                            I've seen this happen when the batteries have exhausted. Have you tried replacing the batteries?
                            -Rupp
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                            • #15
                              Yes, batteries are showing 96% on both sensors, and on one of the units, they were replaced yesterday.

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