Testo 317-3 Ambient Carbon Monoxide Meter - 0632 3173


0632 3173

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Carbon monoxide is a silent killer. It is colorless, it is odorless and above all it is lethal. That’s why it is so important that CO checks are carried out by the book when a gas heating or boiler is being serviced or installed. This not only ensures that the heating or boiler is working properly, it also helps to prevent tragic accidents that occur as a result of carbon monoxide poisoning. 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.

The testo 317-3 CO monitor detects the presence of carbon monoxide in the surrounding area and warns the user both visually and audibly about dangerous gas concentrations e.g. when installing and servicing gas heaters.


  • Instant Start up: no zeroing phase, instrument can be used immediately
  • 3-year warranty on CO sensor
  • Alarm with adjustable thresholds
  • Carry case with belt clip and handstrap

The testo 317-3 CO meter. For measuring carbon monoxide in the surrounding air
A few seconds. That’s all it takes. That’s all it takes to be on the safe side and test the surrounding air for carbon monoxide. The testo 317-3 CO tester measures the concentration of carbon monoxide in ambient air and presents the readings on an easy-to-read display. The CO meter has both a visual and an audible alarm which are triggered when a threshold is crossed.

The CO meter comes with a carry case and a belt clip to ensure that you always have your meter on you and a strap that can be wrapped loosely around the wrist to prevent the meter from falling onto the floor.

PLEASE NOTE: The Testo 317-3 is suitable to check Co in ambient air, It's however not suitable for measuring CO in discharged airstream.


  • testo 317-3 CO meter for measuring CO in the surrounding air
  • Carry case
  • Belt clip
  • Earphones
  • Handstrap
  • Protocol certificate


  Ambient CO
Measuring range 0 to +1999 ppm
Accuracy ±3 ppm (0 to +29 ppm)
±10 % (+30 to +1999 ppm)
Resolution 1 ppm


General technical data
Operating temperature -5 to +45 °C
Storage temperature -20 to +45 °C
Battery type 2 AAA micro batteries
Battery life 150 h (with beeper switched off)
Storage temperature -20 to +45 °C



Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.


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