Tongdy’s newly launched IAQ monitor EM21 is an indoor air quality monitor with unique design and functions that meets commercial Class B requirements. 24-hour monitoring of PM2.5，PM10, CO2, TVOC, temperature, humidity, formaldehyde. It has a unique multi-parameter fitting calibration algorithm and built-in measurement value compensation to ensure reliable and accurate data in different environments. EM21 also provides real-time monitoring options for environmental noise and light brightness.
EM21 has two installation methods, embedded installation in the wall or installation on the wall with the installation box( 4 colors selectable). It can also be placed on the desktop.
EM21 owns a stylish appearance. Users can choose no display, and the three-color light indicates three levels of air quality. You can also choose LCD screen display, with a built-in photosensitive sensor, and the brightness of the display screen can be automatically adjusted according to the ambient brightness during the day and night.
As a commercial-grade indoor air monitor, EM21 has a built-in data logger and supports Bluetooth to download data. Absolutely EM21 uploads data to the cloud in real time, and users can view real-time data and historical data at any time through the PC and mobile app. Analyze, evaluate, and continuously monitor indoor air quality. Precisely control the fresh air and purification system to achieve energy saving while satisfying good air quality. Widely used in indoor public spaces and residential environments, including commercial spaces, schools, hotels and residences.
Post time: Jul-10-2023