Sensors + Actuators Crossword

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Across
  1. 1. I measure heat (11 Letters)
  2. 3. I shut down fuel pump if fallen over (2 Words 4 & 6 Letters)
  3. 4. I read exhaust oxygen levels (6 Letters)
  4. 6. I measure in PSI/BAR (2 Words 4 & 8 Letters)
  5. 7. I amplify the voltage for the spark plug (2 Words 8 & 4 Letters)
  6. 8. I measure the density of air (3 Letters (Abbreviation))
Down
  1. 1. I control the open/close of the butterfly (2 Words 8 & 8 Letters)
  2. 2. I prevent locking up (3 Letters (Abbreviation))
  3. 5. I pressurise the petroleum distillate (2 Words 4 & 4 Letters)