Thermowells for temperature sensors are not a specific brand but a product category used in industrial applications to protect temperature sensors from harsh conditions. They are manufactured by various companies worldwide, including prominent industrial suppliers like Ashcroft (USA), WIKA (Germany), and Omega Engineering (USA). These components are essential in industries such as oil & gas, chemical processing, power generation, and HVAC. Thermowells are designed to house sensors like thermocouples or RTDs, ensuring accurate temperature measurement while shielding them from high pressure, corrosive fluids, or extreme temperatures. Materials range from stainless steel to exotic alloys, with designs like tapered or straight for different flow conditions.