1) Pay attention to regular calibration and testing.

2) Pay attention to the detection interference between different sensors.

3) Pay attention to the lifespan of various sensors:

4) Pay attention to the concentration measurement range of the detection instrument:

For example, if an LEL detector is accidentally used in an environment exceeding 100 percent LEL, it may completely burn the sensor. The use of toxic gas detectors at high concentrations for extended periods of time can also cause damage. Therefore, if a fixed instrument emits an overrun signal during use, the measurement circuit should be immediately closed to ensure the accuracy of the sensor.