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Original X10 Motion Sensor - without Dusk/Dawn notification?

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  • Original X10 Motion Sensor - without Dusk/Dawn notification?

    I have two very old ActiveHome motion detectors. Both are missing rear label. One appears to be MS13a as it has the green LED for configuring Dusk/Dawn behaviour as well as little instruction fold-old sheet under the front cover and it works as documented. The other one I cannot access anything pertaining to dust/dawn configuration. In the beginning, was there an X10 motion sensor like this? Without dusk/dawn reporting?

  • #2
    I remember some of the x10 sensors you could clip the leads of the photocell to disable the dusk/dawn sensor.

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    • #3
      Have a look here.

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      • #4
        I have some really old units from back in the early 80's and they have the dusk/dawn sensors. They are still in use today.


        • #5
          May be a MS12. I believe all these were white. Then there's the MS14 and the MS16 (both had grey cases).
          With the MS12s, as Rob said, I used to just clip the CDS sensor to disable the function altogether. Just cut the leads or desolder the cell. It's usually potted with a bead of silicon. I saved most of these in case I ever wanted to reinstall them... Never did. All this does is disable the Code +1 light dark device. I don't think it affected motion sensing at all.
          I believe the function can be disabled by configuring the MS14 as is also so with the MS16 (has an adjustable pot on top for variable off delay).

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          • #6
            These two units are now antique white. Circa 1990. The one without green LED must be MS12. It's never been modded so I am wondering why it's not reporting Dusk/Dawn.