The picture of the pressure sensor is shown below.
It measures atmospheric pressure.Temperature also needs.
The SG303 in the picture is an active crystal oscillator 32.768KHZ,The TO-92 packaged direct-insertion transistor looks like a voltage-stabilizing transistor.I can only see LE30...
If you know the model of this pressure sensor and the model of the transistor, please tell me. Thank you for your help.