Perchloroethylene C2Cl4

Aeroqual designs and delivers handheld and indoor fixed air quality monitors that measure perchloroethylene (C2Cl4).

Here we cover perchloroethylene measurement principles and specifications.

Overview of perchloroethylene

Perchloroethylene, also known as tetrachloroethylene, is a colorless liquid sometimes used in dry cleaning and metal degreasing. Perchloroethylene evaporates into the air and can be toxic to humans. Potential health problems include headaches, irritation, and neurological damage. Long-term exposure can result in various cancers.


Handheld air monitors and fixed indoor monitors

The perchloroethylene sensor head features in our handheld air quality monitors: Ranger and S Series, and indoor fixed monitor range Series 900.

Sensor head measurement principle

Aeroqual’s perchloroethylene sensor head incorporates a semiconducting gas sensor. The sensing layer is a n-type semiconductor whose resistance decreases when perchloroethylene gas is present. The change in sensor resistance is used to calculate perchloroethylene concentrations.

Sensor head specifications

The table below contains the perchloroethylene sensor head specifications. It can be used on our Ranger, S Series and Series 900 products for industrial health and safety and indoor air quality monitoring.

Sensor code


Sensor type


Range (ppm)


Detection limit (ppm)


Accuracy of factory calibration

<±5 ppm 0-50 ppm

<±10% 50-200 ppm

Display resolution (ppm)


Response time (seconds)


Products that measure perchloroethylene

The following products measure perchloroethylene, as well as particulate matter and gaseous pollutants in real-time.

Inquire about our perchloroethylene products

Our C2Cl4 advanced monitoring systems deliver hyper-local data and real-time alerts, giving you actionable data to make the decisions that matter.