Is it possible to use only one output of UST-05LN?

Relation

• I created an area and wrote to the sensor, but why is it output even though there is no object in the area?

• When was the time stamp acquired?

• Please tell me how to set the hysteresis.

• Does the laser beam of UST-05LN decrease due to deterioration over time?

• I'm running UST using a battery.
  The battery voltage became low and the UST failed output.
  How low is the voltage / current before the failure output is triggered?
  Do you know the exact value?