As a convenience, the transducer is included in the package 4-SIP Module. Ensure reliable performance by setting the transducers to -40°C~85°C. With a supply voltage of 10V~12V, the transducers can operate efficiently. The transducers are not able to work properly without the 4 pins being connected. There is a maximum range of pressure set by this transducer of 30 Psi.