The chamber is an ACS Wazzle WZH30 B2 SP – a so-called walk-in chamber, large enough to enter in order to prepare equipment for testing. It can be regulated in temperature from –40 °C to +80 °C, and in humidity from 10–98% RH for temperatures above 0 °C.

The chamber has a volume of about 30 m³; 2.50 m high, 3.25 m wide and 3.60 m long. Inside the chamber there is a crane that can lift up to 500 kg, making it easier to position large and heavy equipment through the 2 × 2 m door. A lorry can also be driven right up to the chamber.