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
Dimensions76.7 x 41.8 x 233.9 mm
Range of application0…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 range0…5000 ppm, 0.1...99.95 %RH, -20...60 °C
Measurement principleNon dispersive infrared (NDIR) with automatic baseline correction (ABC)
Adjustment points0, 400 ppm and 35, 80 %RH
Pressure dependency+1.6 % reading per kPa
Null drift<10 ppm/year
Power supply4 x AA batteries / optional AC adapter AC1214
Current consumption40 mA (typical)
Battery life50hr
Measured value memory18,000 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 sensorROTRONIC HYGROMER® IN-1
Temperature sensorThermistor
Response time<10 sec @ 30 cc/min. flow, <3 min diffusion time
Response time t 63<30 s, without filter
CalculationsDew point, wet bulb temperature
Parameters shownCO2, relative humidity and temperature
ClockReal time clock
Alarm functionsAdjustable for CO2 measurement
IP protection ratingIP30
CE / EMC conform2004/108/EC
MaintenanceNo maintenance (standard indoor application)

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