Concerned about indoor air quality, especially in offices, classrooms, or at home? The SA1300P is a professional 3-in-1 monitor that measures carbon dioxide (CO2), temperature, and humidity all at once. It uses an accurate NDIR sensor for reliable CO2 readings from 0-3000ppm (and beyond). The large screen shows all data clearly, along with a simple 3-color smiley face system (green/yellow/red) to indicate air quality. It has visual and audible alarms you can set. Even better, it acts as a data logger with 2GB of internal memory, storing readings that you can view as trend charts on the device. It’s powered by a rechargeable battery (10+ hours) or USB, and can be wall-mounted. Perfect for ensuring proper ventilation, monitoring grow rooms, or just keeping your indoor space healthy and comfortable.