STH72G

STH72G is an integrated dust sensor moduel which use the scattered light technique to calculate the dust concentration and include a variety of air quality parameters. It is easy to use with digital output, and suitable for applications such as gas and air quality monitoring, air purifiers, HVAC systems, energy management, building monitoring, and so on.

Application field

The application field of STH72G is very broad. First of all, this dust concentration measurement is widely used in environmental engineering. It is used to analyze dust pollution generated by production and construction activities such as roads, mines, and building construction. It just requires regular installation and calibration to continuously monitor dust concentration and meet environmental assessment requirements.

Besides, STH72G can also be used in air purifying appliances, HVAC systems. Air purifiers, HVAC systems,etc can use STH72G to customize their filtering devices to meet customer\'s demand. And it can provide real-time feedback information about the air quality and adjust electric devices, pipelines or valves to adjust the air quality. This can efficiently manage energy and improve people\'s indoor environment.

Moreover, there is another application which is building monitoring. STH72G is able to sense changes in the environment quickly and transmit signals to the management staff to ensure safety and avoid property losses.

Working principle

The core of STH72G is a common photodiode. The dust material passes through the photodiode and scatters the incident light of the photodiode. The scattered light is converted into electric signals by the photodiode. By connecting with an amplifier and filter circuit, the signal is further amplified, filtered, attenuated, and shaped. Ultimately it is recorded as PM2.5 / PM10 value

Advantages

Advantages of STH72G compared to traditional methods include:1. High efficiency and accuracy. 2. Easy to install and maintain. 3. Automated monitoring offers remote and real-time monitoring of environments. 4. Low power consumption, low cost, and long life.