high pitch

  1. K

    Boiler making strange noise.

    Hello all, Apologies in advance for being completely thick about all this but I wondered if anyone could give me any ideas as to why the boiler has started making this noise. A google search tells me to keep an eye out for a low hum (kettling) but this high pitched noise hasn’t been described...
  2. eveares

    What is this mysterious device? Mosquito deterrent, Cat scarer, or some sort of long range sensor?

    So not long ago I joined a "not so cheap health club" that also has a rather nice hotel. The other day I noticed that the hotel has a number of the following devices around it what appear to be around 4-6 meters off the ground. Now at first I carefully approached it, in case I was going to...
    • eveares
    • Thread
    • high pitch m12d mobotix mobotix m12d mysterious device scary sound
    • Replies: 10
    • Forum: Electrics UK
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