Testo CO₂ probe head including temperature and humidity sensor

The Testo CO₂ Probe Head — 0632 1550 is a digital probe head designed for indoor air quality measurement when used with a compatible Testo universal handle and measuring instrument. It allows technicians to measure CO₂ concentration, air temperature and relative humidity in indoor areas, making it useful for HVAC commissioning, ventilation checks, comfort assessments and IAQ diagnostics.

The probe head can be attached to a compatible Testo universal Bluetooth or cable handle, allowing users to expand an existing Testo measuring system without purchasing a complete separate probe. It also supports calculated values including wet bulb temperature, dew point and absolute humidity, with absolute pressure compensation for improved measurement accuracy.

Key Features

• CO₂ probe head for indoor air quality measurement
• Measures CO₂ concentration, air temperature and relative humidity
• Suitable for long-term indoor air quality monitoring
• Calculates wet bulb temperature, dew point and absolute humidity
• Absolute pressure compensation for improved accuracy
• Attaches to compatible Testo universal handles
• Can be used with Bluetooth or wired handle options, depending on setup
• Intelligent calibration concept — only the probe head needs to be sent for calibration
• Ideal for offices, commercial buildings, production areas and HVAC ventilation checks

Specifications

Kit Includes

• 1 × Testo CO₂ probe head including temperature and humidity sensor
• Calibration protocol

Applications

• Indoor air quality checks
• CO₂ concentration measurement
• Ventilation performance testing
• HVAC commissioning
• Office and commercial building comfort checks
• Long-term IAQ monitoring
• Temperature and humidity assessment
• Dew point and wet bulb calculation

The Testo 0632 1550 CO₂ Probe Head is a smart add-on for technicians already using Testo’s modular probe system. It provides reliable CO₂, temperature and humidity measurement in one compact probe head, making it a strong option for IAQ and ventilation diagnostics.