◦ combined sensor of CO2+RH
◦ power supply 24 V AC/DC
◦ 2x analog output
◦ 3x LED indication
Combined sensor NLII-CO2+RH-R 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 (CO2) and relative humidity (RH) in air. It can be effectively used in offices, classrooms, shopping centers, homes, restaurants, fitness centers, commercial buildings, etc.
Sensor provides two analog outputs, first one for RH and second for CO2 level indication. It is possible to select the response of the relay to either CO2 or RH by jumper. Relay trigger level can be set by rotary switch. Based on these measurements, it is possible to directly control the ventilation, air conditioning and heat recovery units.