

Gain Express is a temperature, humidity and carbon dioxide monitor to keep the whole family healthy. It has an RS232 input and a triple LCD screen that allows digital reading with clear display of all data even with its large font size.
Origin: Hong-Kong
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This is a useful device for air quality monitoring. To keep the family healthy, it is better to take precautions. I bought this monitor to check if we are breathing clean air. We tested it and it works well. I could give it five stars if the delivery had been faster.
I love this unit. It is very impressive to see how quickly carbon dioxide levels rise in a small room. All this even with the bedroom door wide open and a floor fan circulating the air. Lucky for me the solution was just to open the window. It's really helpful for us.
This little device allowed me to notice that the CO2 in my office. It was rising to unhealthy levels within minutes of closing the door. It works very well. It provides an accurate and reliable reading of the data. It is easy to use.
For air quality monitoring
Gain Express is a temperature, humidity and carbon dioxide monitor to keep the whole family healthy. It has an RS232 input and a triple LCD screen that allows digital reading with clear display of all data even with its large font size.
Performance
The Gain Express allows you to monitor in real time the concentration level of temperature, humidity or carbon dioxide so you are always aware of the weather in the environment where you are. It has a stable non-dispersive infrared sensor which, thanks to a built-in relay, controls the ventilation system and automatically maintains the pre-set CO2 level. The device offers a range of temperature measurement from -10 to 60 ° C, humidity from 0 to 99.9% and CO2 from 0 to 2000ppm.
Wide use
It is a device that has a triple LCD screen that allows a digital reading with a clear display of all data even with its large font size. It is suitable for monitoring air quality in schools, buildings, offices, greenhouses, factories, hotels, hospitals and anywhere where high levels of carbon dioxide are generated.
Design
The unit has various inputs on the side including an AC adapter input, RS232 input to connect directly to your ventilation systems while notifying you with an audible alarm when measurements exceed the set limit. The device offers a short term exposure limit of 15 minutes and an average weighted time of 8 hours.