Testo 317-3 CO Monitor
Testo 317-3 CO Monitor

Testo 317-3 CO Monitor

£154.44 inc. VAT
£171.60 inc VAT

Carbon monoxide is a particularly dangerous gas. 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 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 meter measures the concentration of carbon monoxide in the surrounding 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 thresholds can be adjusted individually.

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

And as if that wasn`t enough to convince you, the testo 317-3 also comes with a 3-year CO sensor warranty. There`s testo for you.

  • 3 year warranty on CO sensor
  • Visual and audible alarm
  • No zero phase, instrument can be used immediately
  • Adjustable alarm threshold
  • CO zeroing at site
  • Self-test function

Operating temperature

-5 to +45°C

Battery type

2 batteries Type AAA

Battery life

150 h

Probe - CO

Meas. Range

0 to +1999, ppm


±3 ppm (0 to +29 ppm)

±10 ppm (0 to +99 ppm)

±10 % (+100 to +1999 ppm)


1 ppm

Order-Nr.  0632 3173

Delivery Scope

Testo 317-3 - CO Monitor, carrying case with belt clip, headphones, wrist strap, sampler and calibration protocol

Click here for the Testo 317-3 data sheet