The VQ641TS/3 with Air Quality Sensors VQ41 Pellistor VQ600 Hd 0.75"14NPT is an electronic part manufactured by Amphenol. It is a compact, low profile unit offering an economical solution for monitoring air quality. The unit features an integrated VQ41 pellet sensor with VQ600 heavy duty housing, a 0.75"14NPT, and a 90 centimeter stainless steel probe, which can provide reliable data on air quality. It is designed to be easy to install and maintain, and is compliant with a variety of regulations regarding air quality monitoring. It is ideal for industrial, commercial, and residential applications.