1、5 in 1: Multifunctional detector detects temperature and humidity, carbon dioxide, carbon monoxide, and atmospheric pressure. You can view the required data. 2、Alarm System: with intelligent alarm system, ga s recognition algorithm, multiple anti interference, air convection technology and greenhouse compensation calibration. 3、Large Screen Design: Carbon dioxide detector uses real time monitoring, clear digital display, clear test results, the fastest detection and accurate values. 4、Excellent Chip: The high performance chip can catch the weak current generated during the electrochemical process and calculate the measurement results accurately. 5、High Frequency Measurement: The CO2 detector can be refreshed once per second, allowing for fast measurements and relatively stable measurement values. 6、Wide Range of Applications: Agricultural farming, greenhouse vegetables, production warehouses, radium material processing, etc. Small size, easy to carry, can be carried around. 1 x Multifunctional Detector1 x Power Cord 1 x Base Bracket1 x Lumbar Bracket 1 x Instructions 1 x Storage Bag  Item Type: Multifunctional Detector Material: ABSVoltage: 5VCurrent: 2AMemory Card Type: Micro Storage CardMemory Card Capacity: 128MBCO₂ Measurement Range: 400-5000PPM Resolution: 1PPMCO₂ Measurement Accuracy: ±50ppm or ±5% of the ReadingCO Measurement Range: 0-1000PPM Resolution: 1PPMCO Measurement Accuracy: ±10PPM or ±5% of the ReadingTemperature Measurement Range: -10℃-60℃; ±2℃Humidity Measurement Range: 5%-95%; ±5%Atmospheric Pressure Range: 300-1100hPaRelative Accuracy (950-1050hPa at 25℃): ± 0.12hPaAbsolute Accuracy (950-1050hPa at 0-40℃:) ±1hPaSound Level: 85dB (3M)Working Temperature: 0℃-50℃Working Humidity: 0-95% (Non Condensing)Battery: Polymer Lithium Battery 3200mAh (included)Gross Weight: Approx. 417g/ 14.7oz