Disadvantages of traditional fire smoke sense

Smoke detectors are not suitable for places with protection height greater than 12m.

Point ion smoke detector is not suitable for places that meet one of the following conditions:

The relative humidity of 1 is often greater than 95%.

2 The airflow speed is greater than 5m/s. ..

There is a lot of dust and water mist.

4 May produce corrosive gas.

Under normal circumstances, there are cigarettes left.

6 produce alcohols, ethers, ketones and other organic substances.

Point photoelectric smoke detector is not suitable for places that meet one of the following conditions:

1 There is a lot of dust and water mist.

Steam and oil mist may be generated.

3 high altitude areas.

Under normal circumstances, there are cigarettes left.