The IR4T3PA1252.5X is a sensor RTD assembly manufactured by REOTEMP. With its blue epoxy aluminum head and 4-20 mA HART transx, it offers accurate and reliable temperature measurement. Its 3 inch spring-loaded nipple-union-nipple ensures easy installation and secure connection. Designed for 1/2 inch NPT, it provides precise temperature readings. Ideal for various applications, this sensor RTD assembly offers versatility and durability.