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CO probe head

0632 1270
CO probe head
  • Intuitive: determine CO concentrations in indoor areas, e.g. in boiler rooms
  • Precise: long-term stable electrochemical sensor
  • Convenient: probe head is easy to attach to the universal handle with Bluetooth or cable (available to order separately)
  • Intelligent calibration concept: only send in the probe head for calibration
    • More applications, less equipment: if you already own one of our probes with a universal handle, you can easily expand your portfolio of probes with the CO probe head.

    CO probe head including calibration protocol.

  • CO probe (digital) with Bluetooth®
    CO probe (digital) - with Bluetooth®
      :
      0632 1271
    • CO probe (digital), wired
      CO probe (digital) - wired
        :
        0632 1272
      • CO2 probe (digital) with Bluetooth® including temperature and humidity sensor
        COâ‚‚ probe (digital) - with Bluetooth® including temperature and humidity sensor
          :
          0632 1551
        • CO2 probe (digital) including temperature and humidity sensor, wired
          COâ‚‚ probe (digital) - including temperature and humidity sensor, wired
            :
            0632 1552
          • High-precision humidity/temperature probe (digital) with Bluetooth®
            High-precision humidity/temperature probe (digital) - with Bluetooth®
              :
              0636 9771
            • High-precision humidity/temperature probe (digital), wired
              High-precision humidity/temperature probe (digital) - wired
                :
                0636 9772
              • High-precision vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor
                High-precision vane probe (Ø 100 mm, digital) - with Bluetooth® including temperature sensor
                  :
                  0635 9371
                • High-precision vane probe (Ø 100 mm, digital) including temperature sensor, wired
                  High-precision vane probe (Ø 100 mm, digital) - including temperature sensor, wired
                    :
                    0635 9372
                  • Hot wire probe (digital) with Bluetooth® including temperature and humidity sensor
                    Hot wire probe (digital) - with Bluetooth® including temperature and humidity sensor
                      :
                      0635 1571
                    • Hot wire probe (digital) including temperature and humidity sensor, wired
                      Hot wire probe (digital) - including temperature and humidity sensor, wired
                        :
                        0635 1572
                      • Humidity/temperature probe (digital) with Bluetooth®
                        Humidity/temperature probe (digital) - with Bluetooth®
                          :
                          0636 9731
                        • Humidity/temperature probe (digital), wired
                          Humidity/temperature probe (digital) - wired
                            :
                            0636 9732
                          • Universal Bluetooth® handle for connecting probe heads
                            Universal Bluetooth® handle for connecting probe heads
                              :
                              0554 1111
                            • Universal cable handle for connecting probe heads
                              Universal cable handle for connecting probe heads
                                :
                                0554 2222
                              • Vane probe (Ø 100 mm, digital) with Bluetooth® including temperature sensor
                                Vane probe (Ø 100 mm, digital) - with Bluetooth® including temperature sensor
                                  :
                                  0635 9431
                                • Vane probe (Ø 100 mm, digital) including temperature sensor, wired
                                  Vane probe (Ø 100 mm, digital) - including temperature sensor, wired
                                    :
                                    0635 9432
                                  • Vane probe (Ø 16 mm, digital) with Bluetooth®, including temperature sensor
                                    Vane probe (Ø 16 mm, digital) - with Bluetooth®, including temperature sensor
                                      :
                                      0635 9571
                                    • Vane probe (Ø 16 mm, digital) including temperature sensor, wired
                                      Vane probe (Ø 16 mm, digital) - including temperature sensor, wired
                                        :
                                        0635 9572
                                      • testo 400 Air Flow Kit - For TAB / Commissioning Professionals
                                          :
                                          0563 0407
                                        • testo 400 Comfort Kit - for comfort professionals in high performance buildings
                                            :
                                            0563 0409
                                          • testo 400 IAQ Kit - for Commissioning and IAQ investigation professionals
                                              :
                                              0563 0408
                                            • testo 440 - Vane kit with Bluetooth (Ø 3.9")
                                                :
                                                0563 4403
                                              • testo 440 - Air flow ComboKit 1 with Bluetooth
                                                  :
                                                  0563 4406
                                                • testo 440 - Air flow ComboKit 2 with Bluetooth
                                                    :
                                                    0563 4407
                                                  • testo 440 - Humidity kit with Bluetooth (Ø 0.47")
                                                      :
                                                      0563 4404
                                                    • testo 440 - CO2 kit with Bluetooth
                                                        :
                                                        0563 4405
                                                      • testo 440 - Indoor comfort ComboKit with Bluetooth
                                                          :
                                                          0563 4408
                                                        • testo 440 Air velocity and IAQ measuring instrument
                                                          testo 440 - Air velocity and IAQ measuring instrument
                                                            :
                                                            0560 4401
                                                          • testo 440 - Vane kit (Ø 0.63")
                                                              :
                                                              0563 4401
                                                            • testo 440 - Hot wire kit (Ø 0.35")
                                                                :
                                                                0563 4400
                                                              • testo 440 dP - Air flow ComboKit 1 with Bluetooth and delta P
                                                                  :
                                                                  0563 4409
                                                                • testo 440 dP - Air flow ComboKit 2 with Bluetooth and delta P
                                                                    :
                                                                    0563 4410
                                                                  • testo 440 dP Air velocity and IAQ measuring instrument including differential pressure sensor
                                                                    testo 440 dP - Air velocity and IAQ measuring instrument with differential pressure sensor
                                                                      :
                                                                      0560 4402
                                                                    • testo 400 Universal IAQ instrument
                                                                      testo 400 - Universal Air Flow and IAQ Instrument
                                                                        :
                                                                        0560 0400
                                                                      • testo 400 IAQ and comfort kit with tripod
                                                                        testo 400 IAQ and comfort kit with tripod
                                                                          :
                                                                          0563 0401

                                                                          • Ambient CO

                                                                          Measuring range
                                                                          0 to 100 ppm
                                                                          100.1 to 500 ppm
                                                                          Accuracy
                                                                          ±10 % of mv (100.1 to 500 ppm)
                                                                          ±5 ppm (30.1 to 100 ppm)
                                                                          ±3 ppm (0 to 30 ppm)
                                                                          Resolution
                                                                          0.1 ppm

                                                                          General technical data

                                                                          Storage temperature
                                                                          23° to 122 °F / -5 to +50 °C
                                                                          (recommended: 50° to 86 °F) / (recommended: +10 to +30 °C)
                                                                          Weight
                                                                          0.9 oz. / 25 g
                                                                          Dimensions
                                                                          2.8 x 1.2 x 1.2 in. / 70 x 30 x 30 mm
                                                                          Operating temperature
                                                                          23° to 122 °F / -5 to +50 °C
                                                                          Length probe shaft
                                                                          1.181 in. / 30 mm
                                                                          Probe head diameter
                                                                          1.181 in. / 30 mm
                                                                          Product colour
                                                                          Black

                                                                          Headquarters
                                                                          Testo Inc.
                                                                          40 White Lake Road
                                                                          07871Sparta
                                                                          New Jersey
                                                                          800-227-0729

                                                                          © 2026

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