CP11 Handheld CO2 Meter

The CP11 handheld instrument is a multiple parameter meter that simultaneously measures and records CO2, humidity and temperature.

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Handheld CO2 Meter also Records Humidity and Temperature

It also calculates the dew point and wet bulb temperature. Equipped with the field-tested ROTRONIC HYGROMER® IN-1 humidity sensor, this instruments offers unbeatable value for money. Using the ROTRONIC HW4-Lite software that comes with the device, it can be set as required and data can be downloaded, saved and analyzed.

Software supplied with the instrument or available as download SW2.1 (settings, data download, display of measured values) or compatible with optionally available HW4 software.


Measures and logs CO2, relative humidity and temperature
Calculates the dew point
Hygromer® IN-1 humidity sensor
18,000 data point memory for CO2, humidity and temperature values
Maximum, minimum and average value display
Adjustable audible CO2 alarm
Display with backlight
Adjustable auto power off function
Mini USB interface
Dimensions 76.7 x 41.8 x 233.9 mm
Weight 290g
Range of application 0…50 °C / 0.1…99.9 %RH, non-condensing
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, 0.1...99.95 %RH, -20...60 °C
Measurement principle Non dispersive infrared (NDIR) with automatic baseline correction (ABC)
Adjustment points 0, 400 ppm and 35, 80 %RH
Pressure dependency +1.6 % reading per kPa
Null drift <10 ppm/year
Power supply 4 x AA batteries / optional AC adapter AC1214
Current consumption 40 mA (typical)
Battery life 50hr
Measured value memory 18,000 values with time stamp, automatic recording (%RH / °C / ppm), 99 single values with time stamp, manual recording, (%RH / °C / DP / Tw / ppm)
Warm-up time <1 min.
Long-term stability sensor < 1.5 %RH per year
Humidity sensor ROTRONIC HYGROMER® IN-1
Temperature sensor Thermistor
Response time <10 sec @ 30 cc/min. flow, <3 min diffusion time
Response time t 63 <30 s, without filter
Calculations Dew point, wet bulb temperature
Parameters shown CO2, relative humidity and temperature
Clock Real time clock
Alarm functions Adjustable for CO2 measurement
Housing ABS
IP protection rating IP30
CE / EMC conform 2004/108/EC
Maintenance No maintenance (standard indoor application)

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