A reliable indicator of the air quality in offices, classrooms, or living rooms is the CO2 content. In fresh air, the concentration of carbon dioxide is around 400 ppm. This stands for “parts per ...

Optical sensors are a broad class of device for detecting light intensity. This can be just a simple component for notifying when ambient light levels rise above or fall below a prescribed level, or a ...

This profile has not been claimed by the company. See reviews below to learn more or submit your own review. The Home Depot sells a wide range of home appliances. The company offers kitchen and ...