This transducer was included in the 4-DIP Module package for the convenience of the user. In order to ensure reliable operation, it is recommended that the transducers be set to -40°C~85°C. It has been found that the transducers are capable of operating at supply voltages of 10V~12V. To make the transducers work, you have to connect the 4 pins. It is possible to set the maximum pressure range for this transducer to 100 Psi.