The H3TX-2H-U is a high-precision 48x48mm temperature controller with dual set point capability, designed for accurate thermal regulation in heating applications. This EAPL-certified unit features two independent control circuits with separate displays, supporting J, K, and PT-100 temperature sensors for versatile installation. Each set point controls its own changeover relay, making it ideal for complex heating systems requiring multiple temperature zones. The compact 48mm square design allows for space-efficient panel mounting in control cabinets and industrial equipment.