Ventilation

Winsen Technology has provided accurate gas detection solutions for more than 1,000 fresh air enterprises, which has also established the influence of Winsen sensors in the air purification market. In the future, Winsen will launch more intelligent and miniaturized all-in-one integrated modules to meet the various needs of different customers in the ventilation system market.

A popular solution to indoor air pollution - ventilation system

sensor for Ventilation

The ventilation system is a set of independent air handling systems composed of air supply and exhaust systems. In simple terms, the ventilation system fan can be regarded as the "breathing system" of the house. When it is installed, the house can breathe on its own. In a breath, keep the indoor healthy and comfortable air at all times, and enjoy the fresh air of nature without opening the window.It can avoid "air conditioning disease", recover indoor temperature and humidity, save heating costs, effectively eliminate indoor bacteria and viruses, reduce indoor carbon dioxide concentration and dustproof, and is currently a very popular indoor air pollution solution.

In the intelligent ventilation system, the real-time detection of the air state is realized by adding detection sensors to the host system (such as the dust sensor at the front end of the filter screen), linkage control, that is controlling the operation of the ventilation system fan according to the monitoring data.

The key to the exchange of fresh air: CO2 sensor

sensor for Ventilation

The main function of the sensor in the building automation system is to make the whole building safer, energy efficient and comfortable. The CO2 sensor, like the temperature and humidity sensor and other sensors, belong to the bottom layer. They send their measured values to the data collector through digital or analog signals. After that, it is transmitted to the central processing unit through the data collector. The central processing unit controls the actions of each device through the controller. Through the central processing unit, the main function of the CO2 sensor is to adjust the fresh air volume in the building, and to control the exchange of fresh air by controlling the carbon dioxide content, so that the environment maintains the best comfort level, and the operating cost is minimized, save energy consumption of air conditioners and ventilators. This also slows down the consumption of environmental energy and the increased global greenhouse effect.

Winsen best-selling air quality detection module: ZPHS01

Winsen established a special R&D team to develop a high-end air quality detection module specially designed for air quality detection and very suitable for use in fresh air systems: ZEHS01. It is an all-in-one sensor module integrating electrochemical formaldehyde sensor (or VOC sensor), pm2.5 dust sensor, infrared CO2 gas sensor and temperature and humidity sensor. This product is small in size and has the characteristics of good consistency, stability, accuracy and multi-detection intelligence. It is very convenient to integrate into purifiers and ventilation system, can intelligently sense changes in air quality, and display the collected values of PM2.5, carbon dioxide, formaldehyde (or VOC), temperature and humidity in real time. (Note: The formaldehyde sensor can be replaced with a VOC sensor according to customer needs)

ZPHS01 air quality detection module

▲ ZPHS01 air quality detection module

ZPHS01 all-in-one sensor module has developed a variety of external communication interface methods such as RS485, serial TTL, IIC, etc., and adopts isolated power supply and isolated 485 module to ensure stable operation of the module in complex scenes; The built-in standard MODBUS-RTU communication protocol realizes the master-slave control mode of bus communication,and the customer's host device can connect up to 256 modules as slave devices to realize distributed air quality detection and flexible sensor layout. The product is truly designed from the perspective of customer experience, and intelligent integration makes everything simple. For some customers who are not very proficient in sensors, it is also easy to use.

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RELATED PRODUCTS

Air quality sensor module CO2 sensor Formaldehyde sensor Temperature and humidity sensor Dust sensor VOC

Flat Semiconductor Integrated Gas Sensor ZP01


ZP01-MP503 air-quality module adopts flat surface semiconductor gas sensor. The module has very high sensitivity to volatile organic gases such as formaldehyde, benzene, carbon monoxide, ammonia, hydrogen, alcohol and smoke of cigarette, essence &etc. The module has been aging, debugged, adjusted and calibrated. So it has good consistency and high sensitivity.

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Flat Semiconductor Integrated Gas Sensor ZP07-MP503


ZP07 air-quality module adopts flat surface semiconductor gas sensor. The module has good sensitivity to volatile organic gases such as formaldehyde, benzene, carbon monoxide, ammonia, hydrogen, alcohol and smoke of cigarette, essence &etc. The module has been aging, debugged, adjusted and calibrated. So it has good consistency and high sensitivity. 

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NDIR CO2 Sensor MH-Z19D


MH-Z19D NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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NDIR CO2 Sensor MH-Z19C


MH-Z19C NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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NDIR CO2 Sensor MH-Z19E


MH-Z19E NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.

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Electrochemical Formaldehyde Sensor ZE08K-CH2O


ZE08K-CH2O electrochemical chemical formaldehyde module is a universal, small Module. The use of electrochemical principles to detect CH2O in the air, which has good selectivity and stability. At the same time, it has digital output and analog voltage output for easy use. ZE08K-CH2O is a universal gas module designed to design mature electrochemical detection technology with excellent circuit design.

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Temperature and Humidity Sensor Module ZS05


ZS05 temperature and humidity module is a digital signal output temperature and humidity sensor module. It uses dedicated digital module acquisition technology to ensure high reliability and stability. ZS05 adopts standard IIC communication mode, which can be directly connected to IIC communication bus, easy to use

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Infrared Dust Sensor ZPH02


This sensor integrates infrared PM2.5 detection technology, using particle counting principle to detect PM2.5 in the environment. It can detect the particles (diameter ≥1μm). Before delivery, the sensor has been aged, debugged, calibrated and has good consistency and high sensitivity.

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Laser Dust Sensor ZH03B


Laser Dust sensor module is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good selectivity and stability. It is easy to use, with serial port output & PWM output.

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Laser Dust Sensor ZH06-I


Laser Dust sensor module is a common type, small size sensor, using laser scattering principle to detect the dust particles in air, with good consistency and stability. It is easy to use, with UART & PWM output;Small size is suitable for integrating.

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MEMS VOC Sensor GM-502B


MEMS combustible gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. Use simple circuit can convert the change of conductivity of the gas concentration corresponding to the output signal.

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MEMS VOC Sensor Module ZM01


MEMS combustible gas sensor is using MEMS micro-fabrication hot plate on a Si substrate base, gas-sensitive materials used in the clean air with low conductivity metal oxide semiconductor material. When the sensor exposed to gas atmosphere, the conductivity is changing as the detected gas concentration in the air. The higher the concentration of the gas, the higher the conductivity. The sensor has high sensitivity and small size, and adopts I2C digital signal output mode to facilitate the observation of multiple sensor networks. It also pre-sets a pin for alarm trigger signal output, which can be widely used in many fields such as environmental safety and portable instruments.

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How to choose the right sensor for your project?

We have 17 sensor series, 200+ categories, and 300+ detection objects for gas detection. Such as CO, CO2, VOC, PM2.5, CH4, LPG and so on. In particular, we also have MEMS sensors. According to your industry application, gas principle, power consumption, accuracy, and range requirements, and we can select a specific model for you. You can also use the product filter below to choose a suitable product, or choose online serivce.

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The first six FAQs. Use the search bar above to reveal more!

Can the Two Voltages of Mq-7 Exist All the Time, or Do They Need to Be Powered Alternately? if It is an Alternate Power Supply, What is the Appropriate Power Supply Time?

It requires alternate power supply. Please check the information on the product manual. This sensor is powered by 1.5V and 5V alternately. The low temperature and low voltage (1.5V) state can detect CO, and the high voltage (5V) is the desorption process. The recommended 5V voltage duration is 60s, 1.5V voltage duration is 90s to alternately supply power. Since it is a desorption process at 5V, it is normal for the voltage to drop when CO is 150ppm.

What is the Difference Between Semiconductor Sensors and Electrochemical Sensors?

There is no good linear correspondence between the gas concentration and voltage of the semiconductor sensor, and it is generally only used for fixed-point calibration products; there is a good linear correspondence between the gas concentration and the output current of the electrochemical sensor, and can be made into quantitative detection products.

What Are the Precautions for Manual Soldering of Semiconductor Sensors?

1. Flux: rosin flux with the least chlorine; 2. Constant temperature soldering iron; 3. Temperature: 250℃; 4. Time: no more than 3 seconds.
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