Feature:1. Multifunction CO2 Monitor \u0026 Controller: it can detect CO2 concentration, temperature and humidity in the current environment, and realize the automatic control of carbon dioxide concentration.2. High-precision Split-Type Probe Sensor: high sensitive external probe sensor for quickly and accurately measurement of carbon dioxide content.3. Large Colored Screen: 3.8-inch screen display the current values in real time, and it has the human mode and plant mode to be switched from.4. Human Mode: if the set alarm value is exceeded, the instrument will automatically supply power to the exhaust fan for ventilation and beep sound-light alarm. Suitable for hospitals, offices, schools, stations, commercial buildings, etc.5. Plant Mode: when the set value is exceeded, the relay output will be turned off; and the relay output will be turned on automatically when it decrease to the preset low value. Suitable for greenhouse, agricultural, hydroponic flower industry, mushroom farm, etc.Specification:Features:Multifunction CO2 Monitor & Controller: it can detect CO2 concentration, temperature and humidity in the current environment, and realize the automatic control of carbon dioxide concentration.High-precision Split-Type Probe Sensor: high sensitive external probe sensor for quickly and accurately measurement of carbon dioxide content.Large Colored Screen: 3.8-inch screen display the current values in real time, and it has the human mode and plant mode to be switched from.Human Mode: if the set alarm value is exceeded, the instrument will automatically supply power to the exhaust fan for ventilation and beep sound-light alarm. Suitable for hospitals, offices, schools, stations, commercial buildings, etc.Plant Mode: when the set value is exceeded, the relay output will be turned off; and the relay output will be turned on automatically when it decrease to the preset low value. Suitable for greenhouse, agricultural, hydroponic flower industry, mushroom farm, etc.Easy to Install: the device with simple but stylish appearance, package includes the accessories for wall mounted installation.Specifications:Plug: EU / US / AU (Optional)Material: ABSPower Input: AC100-240VCO2 Measuring Range: 0-9999ppmCO2 Display Resolution: 1ppmCO2 Accuracy: ±50ppmCO2 Repeatability: 10ppmCO2 Temp. Dependence: ±1% of reading per or ±2ppm per , whichever is greater, referenced to 25Pressure Dependence: SupportResponse Time: < 1minWarm-up Time: < 20sTemperature Measuring Range: 0-50 (32-122)Temperature Display Resolution: 0.1 (0.1)Temperature Accuracy: ±0.5 (±1)Response Time: < 10minRH Range: 0-99%RH Accuracy: ±3%RH Resolution: 0.1%Control Unit Size: 164 * 147 * 47mm / 6.47* 5.79 * 1.85in Sensor Unit Size: 105 * 63 * 28mm / 4.13 * 2.48 * 1.10in Item Weight: 1025g / 2.26lb (include cables)Package Weight: 1346g / 2.97lbPackage Size: 24.5 * 18.5 * 10.8cm / 9.65 * 7.28 * 4.25inPackage List:1 * Control Unit1 * Sensor Unit1 * S Hook3 * Cable4 * Screw4 * Drywall AnchorsPackage List:1 * Control Unit1 * Sensor Unit1 * S Hook3 * Cable4 * Screw4 * Drywall Anchors