COM2 version: additional output for connecting e.g.. fan. In public areas such as restroom cubicles, high-frequency technology does not require a lens, so the HF 360 sensor is veryflat, and as a "watchman" it is almost invisible. As a result, it does not have too many surfaces exposed to interference, including vandalism.Steinel is a German brand with production centers located in Europe. Through years of experience, it has become known as a leader in the production of automatic lighting technology. It is also an undisputed pioneer in the field of tanning and glue guns. Steinel products reach customers in more than 90 countries around the world.