This transducer is included in the Cylinder, Metal package for your convenience. Transducers should have their temperature set to -20°C~85°C for reliable operation. When the supply voltage is 1.5V~3.6V, the transducers will operate well. The electronic component is packaged in a Tape & Reel (TR). It is important that the DC voltage be set to 3V to ensure that transducers are continuously capable of operating at the rated ambient temperature.