Temperature/Humidity/CO2 Sensor, Air Quality Measurement Gas Analysis, Relative Humidity, Temperature, CO2 Accuracy +/-50 ppm + 2 Percent of MV, Power Required Powered Via P1 Connection to TEC, Output Integrated to Siemens Controllers, Display Type Digital, Housing Material Polyethylene, Housing Color White, Minimum Operating Temperature 55 Degrees F, Maximum Operating Temperature 95 Degrees F, Compatible Building Automation Protocols BACnet MS/TP