Testo 317-3 - Ambient CO Meter

Part Number: 0632 3173 Brand: Testo

Testo 317-3 - Ambient CO Meter

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The testo 317-3 ambient CO meter detects the presence of carbon monoxide (CO) in ambient air, and warns the user if potentially harmful CO concentrations are reached.

With programmable settings for both visual and audible alarms, as well as hands free operation, ambient CO testing during furnace and boiler service and maintenance, weatherization audits, or home inspections has never been easier.

The testo 317-3 ambient CO meter provides fast and easy CO testing with a small, lightweight form factor.

An exclusive self-test mode provides worry-free operation, as it will always verify that the CO sensor is functioning, anytime and anywhere, without the need for test gas.

In addition, the self-check will ensure accurate CO measurements, without the need to “zero” out the unit in a fresh air environment.
  • Three year CO sensor warranty
  • Adjustable alarm threshold
  • Programmable high and low alarm options
  • Earphone jack, and earbuds for loud environments
  • Hands free operation with belt clip soft case
  • Ready to go: no zero phase
  • Alarm with adjustable thresholds
  • Compact design with belt clip for hands free operation
  • 3-year CO sensor warranty



Delivery Scope

  • Testo 317-3 Ambient CO Meter, Soft Case with Belt Clip, Hand Strap, Earbuds, 2 AA batteries, and Instruction Manual

Operating Temperature

  • 23° F to 113° F / -5° C to +45° C

Battery Type

  • 2 AAA batteries

Battery Life

  • 150 h (With Beeper Switched Off)

Storage Temperature

  • -4° F to 113° F / -20° C to +45° C

Ambient CO

  • Measuring Range: 0 to +1999 ppm
  • Accuracy: ± 3 ppm (0 to +29 ppm) / ± 10 % (+30 to +1999 ppm)
  • Resolution: 1 ppm
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