Description: Clear Large Screen: The large screen design is clear and easy to see. Real-time Data Update: Provides the newest info of the testing value of Carbon dioxide in real time. Accurate and Practical: High-performance chips are accurate and better. Multiple Functions: carbon dioxide detection, hazard assessment, temperature and humidity detection, intelligent alarm system, gas recognition algorithm, multiple anti-interference, air convection technology, greenhouse compensation calibration. Applicable Areas: Perfect for agricultural planting, greenhouse, warehouse,material processing, home decoration. Specification: Material: Plastic+electronic components. Battery: 1200mah. Charging method: USB. Temperature measurement range: -20°~60±2°. Humidity measurement range: 5%~95%±5. Carbon dioxide test range: 0-5000PPM, resolution: 1PPM, measurement accuracy: ±50PPM±5%. Details: 0-499PPM is displayed as green, 500PPM-999PPM is displayed as yellow, 1000PPM-1499PPM is displayed as orange, and 1500PPM and above are displayed as red. Size Chart: Size: 68x39x98mm / 2.68x1.54x3.86inch. Package Includes: 1 Piece Air Quality Detector. 1 Piece USB Charging Cable. 1 Piece Japanese Manual. Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.