This transducer is included in the 4-SIP Module package for your convenience. Transducers should have their temperature set to -40°C~85°C for reliable operation. When the supply voltage is 10V~12V, the transducers will operate well. The transducers can only function properly if the 4 pins are connected. Its maximum pressure range is 0.5 Psi. With nominal supply current of 2mA, the transducers will function normally. It should work with a voltage of 35mV. It is important that the DC voltage be set to 12V to ensure that transducers are continuously capable of operating at the rated ambient temperature.