I have just moved into a new flat and mounted on the wall outside the bathroom is a white box. Inside the white box is a transformer and a circuit board. Can anyone help me identify what the purpose of this is?

Mystery box

Many thanks

  • 6
    Extract fan off-delay timer? – Transistor Sep 1 '17 at 7:44
  • Is it the doorbell? – Dan Laks Sep 1 '17 at 8:03
  • 1
    I'm with Transistor on this one. Big reisstor and setting twiddle-pot on the board, LS (live switched) L and N on the block, all point to a fan timer. – Neil_UK Sep 1 '17 at 8:11
  • 1
    Yes that would make sense that it's the extractor fan. The LED on the left comes on when I turn the bathroom light on. Thanks for solving this :) – JosephFTaylor Sep 1 '17 at 8:20
  • 4
    It's the power supply for the hidden camera. – Andy aka Sep 1 '17 at 9:58

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