The 2020PROPlus uses photoionization, the technology of choice for detecting VOCs. The 2020PROPlus is equipped standard with a 10.6 eV lamp, and has an optional 11.7 eV lamp for ionizing chlorinated compounds. The UV lamp is easy to remove for cleaning or replacement.

A new ergonomic design with textured grip and large keys makes the 2020PROPlus easy to carry and use,
even while wearing triple-layer gloves. The large backlit display is easy to read with large fonts. All information is clearly displayed on a single 8-line display.