Carbon monoxide (CO) is harmful when breathed because it displaces oxygen (O2) in the blood and deprives the heart, brain and other vital organs of oxygen (O2). Large amounts of carbon monoxide (CO) can overcome you in minutes without warning — causing you to lose consciousness and suffocate.

By having accuratereliable equipment to monitor these levels means that you should always be kept safe when working with or around carbon monoxide (CO).



The TEC CO is a device for monitoring very low levels of carbon monoxide (CO). This is housed in a robust miniature enclosure rated for IP55 ingress protection, with built-in temperature compensation and an RS485 digital output via Analox communications protocol.

The sensors are backwards-compatible with the existing MEC (mini electrochemical) range and offer the same modular approach to gas monitoring.

The TEC CO sensor can be supplied as an original equipment manufacturer (OEM) component for third party systems integration. It can also be incorporated in Analox products such as the SDA CO+ or the ACG+, built specifically for applications measuring sub-ppm gas values.

The TEC CO sensor was developed with signal stability in mind. It uses a sophisticated 4-pin electrochemical sensor which provides greater sensitivity than a 3-pin type, and its ‘plug-in’ mounting ensures that the cell pins have very short tracks to the circuit board for improved noise immunity. This connection arrangement not only maximises sensor performance but also simplifies routine maintenance such as cell replacement.

The TEC CO sensor can be installed either in the open environment or directly in the gas path.

  • Highly accurate 4-pin sensor
  •  >3-year expected cell life
  • Temperature compensation Sub-ppm gas measurement
  • RS485 digital output
  • Optional pressure sensor
  • Easy cell replacement
  • High stability, low drift

The TEC CO sensor is used in applications such as:

  • Medical air facilities
  • Atmospheric pollution monitors
  • Breathing air compressors
  • Saturation/commercial diving systems

Carbon dioxide (CO2)

The Analox team is here to help you choose the right configuration for your applications.

We can also offer training on:

  • Gas safety 
  • Installation 
  • Maintenance 

We have a 24/7/365 emergency support helpline available to all customers.

Analox, always by your side.

Contact us