Testo 317-3 Carbon Monoxide Meter


Carbon monoxide is a silent killer.

The compact Testo 317-3 CO meter is designed to provide you with a quick and reliable means of testing ambient air for carbon monoxide.


  • Instant Start up: no zeroing phase
  • 3-year warranty on CO sensor
  • Alarm with adjustable thresholds
  • Carry case with belt clip and hand strap

    Testo 317-3 Users Manual

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