NLII-C02 | Combined sensor C02/RH Combined sensor NLII-C02/RH is used to monitor air quality inside buildings and power control ventilation (HVAC) systems according to current levels of air internal air quality. The sensor measures concentration of carbon dioxide (C02) and relative humidity (RH) in air. It can be effectively used in offices, classrooms, shopping centers, homes, restaurants, fitness centers, commercial buildings, etc. ) measures C02 and RH ) 2x analog voltage/current output ) 2x output relay - 2x NO/C ) cascade switching ) not required maintenance during operation ) long life and stability Type of sensor NLII-C02 NLII- C02 -R NLII- C02 +RH NLII- C02 +RH-R Protronix s.r.o., Pardubicka 177, Chrudim 537 01, Czech Republic ds-nlii-co2-en-v3-160311