Muser Apac Sdn Bhd
V Office 2, VO2-03-12,
Lingkaran SV,
Sunway Velocity,
Jalan Peel,
55100 Kuala Lumpur,
+603-2742 7468

Testo 0632 1551 | CO2 probe (digital) - with Bluetooth® including temperature and humidity sensor

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Testo 0632 1551 | CO2 probe (digital) - with Bluetooth® including temperature and humidity sensor NTC External Probes Testo

Testo 0632 1551 | CO2 probe (digital) - with Bluetooth® including temperature and humidity sensor

Product Description

Use the probe with the compatible testo multifunction measuring instrument (please order separately) to determine CO2 concentration, air humidity and air temperature. Wet bulb temperature, dew point and absolute humidity are calculated at the same time.

CO2 probe with Bluetooth including temperature and humidity sensor – features

Use the probe to check the indoor climate, for example in offices, production areas or storage facilities. To ensure accurate measurement results, air density compensation is carried out via the integrated absolute pressure measurement.
The readings of the CO2 probe are transmitted to your measuring instrument via Bluetooth, up to a distance of 20 m.

Particularly useful: store individual readings directly in the measuring instrument by pressing the button on the probe. The clearly structured measurement menu for long-term measurement enables the measuring instrument to be operated intuitively. Reading trends are reliably recorded thanks to the convenient input of measurement time and measuring cycle. You can use these trends to evaluate changes in the indoor air quality.

Wireless and space-saving: more applications, less equipment

Endlessly versatile: a universal handle can be connected to all probe heads – so you can master more applications using less equipment and save space. The Bluetooth handle makes it more convenient to carry out your measurement and guarantees less cable clutter in the case.

Or order the cable handle to connect testo probe heads. This is an advantage if Bluetooth signals are not permitted. If the sensors (CO2, humidity, temperature) need to be replaced in the distant future, you can change the probe head.

Intelligent calibration concept

You will get exceptionally accurate measurement results with the digital probe, because the measuring instrument makes measurement uncertainty a thing of the past. You only need to send the probe head in for calibration – so the measuring instrument remains in continuous use.

Areas of application for the CO2 probe with Bluetooth

Use the CO2 probe including temperature and humidity sensor to check the indoor climate (indoor air quality), e.g. in offices, production areas or storage facilities.

The CO2 concentration is a primary indicator of indoor air quality. Poor air quality due to excessive CO2 concentration results in tiredness and lack of concentration, and can even cause illnesses. The CO2 concentration should therefore not normally exceed 1,000 ppm.

Delivery Scope

CO2 probe with Bluetooth including temperature and humidity sensor (consisting of CO2 probe head and Bluetooth handle); 4 x AA batteries, table stand and calibration protocol.

Please do not use the probe in condensing atmospheres. For continuous application in high-humidity ranges
    > 80% RH at ≤ 30 °C for > 12 h
    > 60% RH at > 30 °C for > 12 h
please contact us via the Muser website.

Technical Data

Temperature - NTC
Measuring range 0 to +50 °C
Accuracy ±0.5 °C
Resolution 0.1 °C
Humidity - Capacitive
Measuring range 5 to 95 %RH
Accuracy ±3 %RH (10 to 35 %RH)
±2 %RH (35 to 65 %RH)
±3 %RH (65 to 90 %RH)
±5 %RH (Remaining Range)
±0.06 %RH/K (0 to +50 °C)
Resolution 0.1 %RH
Please see the additional accuracy information for humidity in the instruction manual.
Absolute Pressure
Measuring range +700 to +1100 hPa
Accuracy ±3.0 hPa
Resolution 0.1 hPa
Ambient CO₂
Measuring range 0 to 10000 ppm
Accuracy ±(50 ppm + 3 % of mv)
(0 to 5000 ppm)
±(100 ppm + 5 % of mv)
(5001 to 10000 ppm)
Resolution 1 ppm
General technical data
Storage temperature -20 to +60 °C
Weight 195 g
Dimensions 295 x 50 x 40 mm
Operating temperature -5 to +50 °C
Length probe shaft 130 mm
Probe head diameter 30 mm
Product colour black/orange
Battery type 4 x type AA batteries
Battery life 21,5 h
Data transfer Bluetooth®
Radio range 20 m


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