Static high pressure reactors are equipped with a range of UHV ports of various standard sizes. They are designed typically for base pressures lower than 1×10^-8 mbar. Reactors with cooling and heating options can work from negative temperatures up to 650°C. The heating and cooling facilities are controlled by the HEAT3-PS temperature controller and the temperatures depend upon the individual sample holder specifications. The transferrable sample holder is introduced through the transfer flange and stored in the sample holder receiving station.