This pressure transducer is designed to accurately measure pressure within a range of negative 15 pounds per square inch (psi) to positive 35 psi. It is manufactured by Trane, a reputable company in the HVAC industry known for producing high-quality equipment. The TDR0272 model is reliable and durable, making it an ideal choice for HVAC service technicians who need precise pressure measurements in their work. With its advanced technology and easy installation process, this pressure transducer is a valuable addition to any HVAC toolkit.