Feature: 1. Accurate Display: The sensor module of CO2 detector has high accuracy , good stability and anti interference, and accurately displays CO2 concentration. Humidity display and three measurement modes. 2. Realtime Detection: The carbon dioxide detector can do realtime detection, with a built in high performance chip, and uses monitoring technology to report the number of air changes. 3. LCD Display: The air quality detector has an easy to read LCD screen that displays data while color coding. 4. Adjust Brightness: Touch the left and right buttons on the power switch to adjust the brightness of the screen according to the position. 5. Compact Design and Versatility: The air quality detector has a compact design for tabletop placement and wall mounting, low power consumption, and is widely used in agricultural farming, greenhouse farming, etc. Specification: Item Type: Air Quality Detector Material: ABS Battery: Lithium Ion Battery 1200mAh (Built In) Uses: Widely used in agricultural cultivation, greenhouse cultivation, production warehouses, laboratories, families, etc. Basic Parameters. CO2 Detection Range: 400 to 5000PPM CO2 Detection Accuracy: 1PPM HCHO Detection Range: 0 to 1.999mg/m³ TVOC Detection Range: 0 to 9.999mg/m³ Temperature Detection Range: 1 to 70℃ Temperature Detection Accuracy: ±1℃ Humidity Detection Range: 0% to 99%RH Humidity Detection Accuracy: ±2%RH. Package List: 1 x Detector1 x Charging Cable(Random Color)1 x Manual