What is it used for?

This replacement CO sensor keeps your Fieldpiece combustion analyser safe, accurate, and compliant. Swap it in to maintain reliable carbon monoxide testing on-site.

Pre-calibrated for accuracy

No need to calibrate it yourself – the RSCM4 arrives pre-calibrated at two levels and includes a certificate to prove it’s ready to go.

• ✅ Dual-point calibration ensures high accuracy for field testing
• ✅ Certificate of Calibration included in the box
• ✅ Installs easily in Fieldpiece combustion analysers

Sensor lifespan

Most techs will get around two years of use with normal operation. However, exposure to heavy contaminants can shorten its life.

• ✅ Expected lifespan is approximately two years
• ✅ Built to withstand everyday HVAC jobsite conditions
• ✅ Avoid repeated exposure to high contamination to prolong life

What's in the box?

Everything you need for a quick sensor swap and peace of mind.

• ✅ RSCM4 Replacement CO Smart Sensor
• ✅ Certificate of Calibration