Measure the quality of air inside buildings using this digital CO₂ probe from Testo. It's designed for use with measuring instruments in the 440 series for ease of assembly. For versatility, this probe can take carbon dioxide, temperature and humidity readings. Built-in sensors and automatic calibration ensure precise results.

• Battery-powered for portable use
• Compact dimensions of 295 (length) x 50 (width) x 40mm (depth) for ease of handling
• Wide temperature measurement range of 0°C to +50°C for use in demanding environments

• Storage facilities
• HVAC maintenance
• Office buildings

This probe comes with Bluetooth connectivity for quick and easy transmission of readings to your devices. It has a radio range of 20m for transfer across large distances.