The AQM2000 Siemens Duct Point Sensor Mounting Flange Kit is a product designed for use in HVAC and refrigeration systems. It is manufactured by Siemens Building Technologies and was first introduced in the year 2000. This kit allows for easy installation and mounting of the AQM2000 sensor, which measures temperature and humidity in ducts and other atmospheric applications. The flange is made in the United States and is not a custom or modified product.