Four common environmental detectors!

What is an environmental detector? Environmental detectors are instruments used to detect the concentration of some components or objects in the environment. The environmental detectors commonly found in the security industry are mainly to detect gas, gas, smoke and other factors related to our life safety. We summarize several commonly used security-type environmental detectors.

1. "Combustible gas detector" for detecting "gas concentration"

Combustible gas detectors are used in apartment buildings and other places. They are mainly installed on kitchen walls to detect the concentration of gas in the air. The general installation location is also very particular. The location of the gas port is about 4 meters. Suitably, once the gas concentration is detected to exceed the predetermined value, an alarm sound is generated by itself to alert the user to the processing.

Second, the "water detector" that detects "whether water is leaking"

The water sensor is divided into two types: “photoelectric water sensor” and “probe water sensor”. Because the photoelectric water detector has high production cost, the most widely used in the market is “exploration”. Needle type water sensor detector" When the water contacts the two legs of the probe, the impedance of the probe changes greatly, that is, the difference between the resistance of the air resistance and the water, and the corresponding circuit determines whether there is a water leakage and a water leakage alarm signal.

Third, the "temperature detector" for detecting "ambient temperature"

These types of detectors are relatively common in factories. They are mainly used to detect changes in ambient temperature, prevent unnecessary temperature problems caused by changes in the workshop, and are rarely used in normal life.

Fourth, the detection of "smoke concentration" of " smoke detector "

The smoke detector realizes fire prevention by monitoring the concentration of smoke. The smoke detector uses ion smoke sensor. The ion smoke sensor is a technology-advanced, reliable and reliable sensor. It is widely used in various fire alarms. In the system, the performance is much better than the fire alarm of the gas sensor.

These four types of environmental detectors are not only the most widely used types of detectors in security, but also the longest-to-be-detected detectors in our daily lives. This also indicates that people now pay attention to their own environment and perimeter safety.