The Lascar Electronics EL-WEM WiFi Indoor Air Quality Monitor helps ensure adequate indoor air quality (IAQ) at home or at work. The ELWEM measures particulate matter (PM2.5), temperature, humidity, VOC's and pressure, rating the IAQ on five levels from Excellent to Inadequate. The EL-WEM status ring shows the IAQ level at a glance, changing to red when the IAQ reaches either of the two lowest levels, a sounder can be activated when IAQ is low. This unit features a quick set up using the EasyLog Cloud App, allowing users to easily activate automatic alerts via email or SMS messages. The WiFi indoor air quality monitor includes a Do Not Disturb mode, allowing users to set times of day when the status ring and sounder are turned off.