This transducer is included in the package 4-SIP Module. Ensure reliable performance by setting the transducers' temperature to -40°C~85°C. It is possible to use the transducers with a supply voltage of 2.5V~16V without any problems. Transducers need to be connected to 4 pins in order to function properly. Transducers should receive a DC voltage of 16V in order to maintain the rated ambient temperature continuously.