This wireless indoor air quality monitor from INKBIRD is the perfect solution for keeping an eye on the quality of the air in your home or office. With an electronic ink display and NDIR technology, this unit provides accurate and reliable measurements of the air quality in your space with years of battery life on the included AA cells. Made in the United States, this air quality monitor is a top-of-the-line choice for those concerned about the quality of the air they breathe.