Intuitive Expression: The Display Shows Emoticons To Indicate Comfort Levels, Making It Easy For Anyone To Understand The Conditions At A Glance. Air Comfort Indicator: Our Meter Features A Unique Function That Tells You How Comfortable Your Space Is, Keeping You And Your Family Healthy. Navigating through the day should be simple and stress-free, especially when it comes to the comfort of your living space. Our meter takes the guesswork out of environmental conditions with its intuitive expression feature. By displaying emoticons, it instantly communicates whether the air is too dry, moist, hot, or cold. Coupled with our clear LCD screen, you'll have all the information you need to make your environment cozy and inviting, ensuring that your loved ones always feel at ease.