Description: Made of high quality ABS plastic material,durable. This product is an air quality monitor that detects Carbon dioxide (CO2),Temperature, and Humidity. it combines sensors real-time monitoring of Carbon dioxide (CO2),temperature, and humidity on its display. Common Screen display,Test variables:Carbon dioxide (CO2),temperature, humidity. Carbon dioxide detector co2 monitor with large screen displays power, carbon dioxide, temperature and humidity. Compact and portable, can be placed in the kitchen, bathroom, living room, desk, coffee table, and other environments. Specification: Measurement range :400-5000ppm Measurement accuracy :±100ppm Resolution: HD Voltage :5 (V) Size Chart: Size:Approx.14.3x6.8x9cm/5.63x2.68x3.54inch Package Includes: 1 Piece Air Quality Detector 1 Piece USB Cable Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!