In the modified TempEvent temperature test chambers, temperature tests can be carried out in a range from -40 °C to +90 °C. The average rate of temperature change with 90 kg test material (energy storage and holder) in the test chamber is 2.5 K/min. Thanks to their optimised airflow, TempEvent cabinets provide excellent temperature constants with deviations of only ±0.1 to ±0.5 K (temporal) and ±0.5 to ±1.0 K (spatial).