Air Monitor Gas Monitor Cotroller, CO2 Temp Rh PAR Monitor manufacturer / supplier in China, offering Portable CO2/Temperature Monitor with Dual- Beam Ndir Sensor for Air Quality Detecting of School and Hospital and Restaurant, CO2/Temperature Monitor with Dual- Beam Channel Ndir Sensor and LED Display for Greenhouse and Indoor Plants., Mini-Smart CO2/Temperature Monitor with LED Display for Air Quality Detecting of School and Hospital and so on.