The "Quantis" device, by id-Quantique, is a scientific instrument which performs quantum measurements on demand.

From id-Quantique's website: "Photons - light particles - are sent one by one onto a semi-transparent mirror and detected. The exclusive events (reflection - transmission) are associated to "0" - "1" bit values. The operation of Quantis is continuously monitored to ensure immediate detection of a failure and disabling of the random bit stream. Quantis has been evaluated and certified by the Swiss Federal Office of Metrology (also known as METAS), the Swiss national organization in charge of measurement science, testing and compliance. It confirmed that the quality of its random output complies with the highest requirements. See the Certificate of Conformity and read the Test Report."

The particular Quantique device we currently use is housed in Switzerland, at the University of Geneva. (In the event that this device is off-line, we have a backup device located in Southern California.)