For convenience, this transducer is included in the 4-SIP Module package. The temperature of the transducers should be set to -40°C~85°C to ensure reliable performance. The transducers can operate well with a supply voltage of 2.5V~16V. For the transducers to work properly, 4 pins must be connected in order to make it work. The voltage released by the transducers should be 100mV to make it work. DC voltage should be 10V so that the transducers can continuously operate at the rated ambient temperature.