PowerSupply 0.1-24 E is a 24V DC power supply for 230V AC mains supply through a  SMPS power supply. The power supply is intended for use with e.g. the ES 899 CO2 sensor, but it is also suitable for use with other products. Furthermore the unit is able to compare the voltage on a 0-10V input with the potentiometer setting on the printed circuit board. If the input voltage exceeds the potentiometer setting the relay opens. It is also possible to connect an external potentiometer or a 0-10V signal instead of the internal potentiometer.