The residual pressure sensor is a building fire ventilation pressure monitoring device that uses high-precision SMI sensors and digital technology. Suitable for monitoring front room air pressure, stairwell pressure, and corridor pressure. This series of products is an economical and universal specialized product developed specifically for differential pressure control of positive pressure air supply residual pressure control systems. The product is installed in an 86 bottom box, which is easy to use and has reliable connections. The product has good sealing and protection level.

The residual pressure sensor is a building fire ventilation pressure monitor that uses high-precision SMI sensors and digital technology. Suitable for monitoring front room air pressure, stairwell pressure, and corridor pressure. This series of products is an economical and universal specialized product developed specifically for differential pressure control of positive pressure air supply residual pressure control systems. The product is installed by wall mounting, which is convenient to use and has reliable connection. The product has good sealing and protection level.

When the car engine is running at full speed, due to insufficient combustion of gasoline, a large amount of exhaust gas containing C0 will be produced. Underground parking lots are enclosed environments with concentrated vehicles entering and exiting frequently, and the exhaust emissions are not easily discharged outdoors, which can easily accumulate a large amount of C0 gas and cause a pungent odor in the parking lot, damaging people's health.
The air quality monitoring system designed and developed by our company is suitable for monitoring air quality in underground parking lots. This system is an intelligent system that integrates industrial computer technology, communication, anti electromagnetic interference, digital sensing, and industrial two bus technology. It can perform 24-hour real-time automatic inspection of CO concentration or temperature and humidity in underground parking lots, give alarm prompts for CO concentration exceeding the standard or temperature and humidity values exceeding the standard, and link the mechanical exhaust system to ensure that the underground garage environment is within a safe range.

The air quality controller is used for bus based control interface and can control the on-site fans;
The signal of the fan equipment's operation can be fed back to the air quality monitor. Small size, easy to install;
Electronic encoding, which can be rewritten on-site using a handheld encoder;

LCD display, capable of real-time detection of CO concentration values and uploading them to the air quality controller
CO concentration value display
Having a unique address code for easy debugging and post maintenance
Bus power supply, saving costs
The linkage air quality controller controls the fan to turn on or off. Meet air quality requirements and achieve green environmental protection.

Real time monitoring of temperature and humidity in underground parking garages. Measure the temperature and humidity of the underground garage and upload it to the air quality controller.
Having a unique address code for easy debugging and post maintenance.
Bus power supply saves costs.
The linkage air quality controller controls the fan to turn on or off. Meet air quality requirements and achieve green environmental protection.

Real time detection of CO concentration values is transmitted to the input/output module of the fire alarm host through dry contact signals, and linked to control the opening or closing of the fan. Meet air quality requirements and achieve green environmental protection. Suitable for renovation projects.
CO concentration value display.
Having a unique address code for easy debugging and post maintenance.
Bus power supply saves costs.
Four wire system, capable of directly outputting switch signals to the fan control cabinet to enable or disable the fan. Mainly used for renovation projects, with high cost-effectiveness.