Rotronic CO2 Display


  • Measures and records CO2, relative humidity and temperature
  • Accuracy ±2.5 %RH / ±0.3 K / ±30 ppm + 5% of measured value
  • Rotronic Hygrometer IN-1 humidity sensor
  • 18,000 data point memory for CO2, humidity and temperature values
  • Display of date and time
  • Adjustable, visual CO2 indicator
  • Large, easy-to-read display
  • USB access for data download

The wall-mounted or bench-top CO2 display is the latest development of an inexpensive display unit that simultaneously measures and records CO2, humidity and temperature. Equipped with the field-tested ROTRONIC HYGROMER® IN-1 humidity sensor, this instrument offers unbeatable value for money. The instrument can be configured directly with buttons and stored data can be exported to a USB stick for analysis with the free ROTRONIC software package SW21.


Indoor Air Quality: Classrooms, Meeting Rooms, Open-Plan


Accuracy at 23 ±5 °c ±30 ppm ±5 % of the measured value, <2.5 %RH (10…90 %RH), ±0.3 °K
Measuring range 0…5000 ppm / 0…100 %RH / -20…60 °C
Range of application 0…50 °C / 0…95 %RH, non-condensing
Measurement principle Infrared (NDIR) with automatic calibration (ABC)
Adjustment points 0, 400 ppm and 35, 80 %RH
Pressure dependence +1.6 % reading per kPa
Zero drift <10 ppm/year
Power consumption AC adapter 12 VDC
Warm-up time <1 min.
Long-term stability < 1.5 %RH per year
Humidity sensor Rotronic Hygrometer IN-1
Temperature sensor NTC
Response time CO2 : <3 min. diffusion time / T°: 4s
Response time t 63 <30 s, without filter
Current consumption 700 mA (max)
Parameters shown CO2, relative humidity and temperature
Alarm indicators Adjustable for CO2 measurement
Clock Real time clock
Memory size 18,000 values with time stamp, automatic recording (%RH / °C / ppm)
Housing ABS
Ce / emc conform 2004/108/EC
Maintenance No maintenance (standard indoor application)
Dimensions 330 x 250 x 50 mm
Weight 1400 g


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