CO2 meter with adjustable alarm threshold. Monitors the CO2 concentration in the air. Modern glass touch surface. CO2 range: 0-2000 ppm, standard alarm threshold: 1000 ppm (adjustable). Temperature measurement range: -9.0 to 50 ℃. Humidity: 0% to 99% RH. The MCO Home air quality monitor can detect and alert CO2 levels in real-time. It features built-in sensors for VOC, temperature, and humidity. The air quality monitor can directly control other devices, such as fans, through its outputs. The MCOEMH9-CO2 impresses with high reliability and practicality and can also be connected with other devices via Z-Wave wireless technology. Smart home products compatible across manufacturers thanks to the Z-Wave protocol. The Z-Wave Alliance was founded in early 2005 by a group of leading home automation manufacturers who were all dissatisfied with the technological fragmentation that stifled the promise of the then-nascent home control industry. Their goal was to guide this industry from an unclear future to a practical and widely adopted reality through shared technological standards. Since its inception, the Z-Wave Alliance has proven to be instrumental in the market for wireless home control. Thanks to the efforts of the founding companies of the Z-Wave Alliance and the more than 450 companies that have joined since, the promise of practical home automation is now a reality in the market.