Security System Sensors

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Across
  1. 1. an electromagnetic switch used to control the flow of electricity in a circuit
  2. 4. the act of covering something to stop heat, sound, or electricity from escaping or entering
  3. 5. to switch on a piece of electrical equipment by accident
  4. 6. (CIRCUIT) without interruption, providing a continuous path through which a current can flow
  5. 7. a tube that allows gas or liquid to flow around something rather than through it
  6. 8. an occasion when a machine or part of your body stops working properly
Down
  1. 2. to make something such as a bomb or electrical system start to operate SYN set off
  2. 3. useful, near and easy to reach
  3. 4. (BEAM)electromagnetic radiation (EMR) with wavelenghs linger thatn those of visible light
  4. 5. to touch or make changes to something that you should not