Some Application of sensor in our daily life:

1.Automatic door, using the infrared microwave of the human body to open and close the door;

   2. Smoke alarm, using smoke resistance to measure the smoke concentration so as to achieve the purpose of the alarm;

   3. Mobile phones, digital camera cameras, using optical sensors to capture images;

   4. Electronic scale, making use of mechanical sensors (conductor strain gauge technology) to measure the pressure of the object corresponding to the variable in orde to measuring weight;

  5.Water level alarm, temperature alarm, humidity alarm, optical alarm, etc