Why do some O2 sensors drift or read inaccurately?

  • By PureAire
  • 22nd June, 2018

Oxygen sensors that use an electrochemical sensor are more susceptible to sensor drift or inaccurate readings due to the way the sensor is put together.

Electrochemical sensors are comparable to batteries in that they lose power over time and must be calibrated. Calibration recharges and resets the unit so it reads accurately. It’s important to note that electrochemical sensors can be charged a finite amount of times, so when the sensor’s power output is depleted it must be thrown away.

PureAire’s oxygen sensors use zirconium, which is naturally less susceptible to sensor drift or inaccurate readings. By switching to O2 sensors from PureAire, you can enjoy the most long lasting, reliable, and accurate oxygen deficiency monitor available.