1、6 in 1: This detector can detect temperature and humidity, carbon dioxide, CO2, altitude and atmospheric pressure. You can view the required data. 2、Intelligent Alarm System: The detector has intelligent alarm system, GA s identification algorithm, multiple anti interference, air convection technology and greenhouse compensation calibration. 3、Real Time Monitoring: Large screen design, clear digital display, clear test results, the fastest detection and accurate values. It is applicable to agricultural planting, greenhouse vegetable, production warehouse, radium material processing, etc. 4、High Performance Chip: The high performance chip can accurately capture the weak current generated in the electrochemical reaction process, and accurately calculate the measurement results. 5、Accurate Testing: Carbon dioxide detection can be refreshed once a second, which can quickly measure and obtain relatively stable measurement values. Small size, easy to carry. 1 x Altitude Pressure Detector1 x Power Cord1 x Base Bracket 1 x Waist Bracket1 x Instruction Manual1 x Storage Bag  Item Type: Altitude Pressure DetectorMaterial: ABSGross Weight: 430g/ 15.1ozVoltage: 5VCurrent: 2AMemory Card Type: Micro memory cardMemory Card Capacity: 128MBCarbon Dioxide Measurement Range: 400-5000PPM Resolution: 1PPMCO2 Measurement Accuracy: ± 50ppm or ± 5percents of readingCO Measurement Range: 0-1000PPM Resolution: 1PPMCO Measurement Accuracy: ± 10ppm or ± 5 percents of readingTemperature Measurement Range: - 10 ℃ - 60 ℃; ±2℃Humidity Measurement Range: 5percents - 95percents; ±5percentsAtmospheric Pressure Range: 300-1100hPaRelative Accuracy(950-1050hPa at 25 ℃ ): ± 0.12hPaAbsolute Progress(950-1050hPa at 0-40 ℃): ±1hPaAltitude:+9000/- 500m, above/below sea levelSound Level: 85db, 3MOperating Temperature: 0 ℃ - 50 ℃Operating Humidity: 0-95 percents, non condensingBattery: Polymer lithium battery 3200mAh, included