Testo Carbon Dioxide Probe
This product has been retired.

0632 1240


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  • Measuring Ranges:
    • 0 to +1 Vol. % CO2
    • 0 to +10000 ppm CO2
  • Accuracies:
    • ±(50 ppm CO2 ±2% of mv) (0 to +5000 ppm CO2)
    • ±(100 ppm CO2 ±3% of mv)(+5001 to +10000 ppm CO2)

This product is an accessory for the following products:

Testo 320 Combustion Analyzer
RESNET certified combustion analyzer, combustion analysis in HD, high def & heavy duty, for residential and commercial applications
Testo 400 Reference Meter & Logger
Multi-function reference instrument with data logging and PC communications
Testo 650 Humidity Meter
Reference class humidity measuring instrument with an accuracy of ±0.01 AW

The Testo carbon dioxide probe is designed for use with Testo 400, 650 and 950 meters.

The Testo carbon dioxide probe is not compatible across all meter models. The carbon dioxide probe requires a connection cable. Please consult the datasheet or contact us for additional information.

Testo Carbon Dioxide Probe:

Model Description Range Connection
0632 1240 CO2 probe for ambient levels in air 0 to 1% vol; 0 to 10,000 ppm requires cable