The testo 635-2 Thermohygrometer is an advanced measurement tool for professionals in HVAC, environmental monitoring, and industrial applications. Designed to handle a wide range of temperature and humidity measurements, it supports optional sensors for monitoring material moisture, pressure dew point in compressed air systems, and absolute pressure.

With two plug-in sensor ports and the ability to connect up to three additional wireless sensors, the testo 635-2 provides flexible and comprehensive data collection. Users can also benefit from the ability to calculate dew point differences, which helps analyse moisture levels on surfaces such as ceilings and walls, crucial for preventing mould and structural damage.

Equipped with a super-size memory, the device can store up to 10,000 readings, making it ideal for long-term monitoring. The included USB cable and PC software enable easy data transfer and archiving, while the testo fast printer (optional) allows for instant printouts directly on-site.

Designed for convenience, the testo 635-2 features a backlit display for easy readability in poor lighting conditions, an intuitive menu navigation system, and a robust protective casing to withstand demanding environments. Whether in climate control, building diagnostics, or industrial quality assurance, the testo 635-2 delivers reliable, high-precision measurements with user-friendly operation.

• Versatile measurement capabilities – supports temperature, humidity, material moisture, pressure dew point, and absolute pressure measurements
• Multi-sensor connectivity – can connect to 2 plug-in sensors and up to 3 wireless sensors for flexible data collection
• Large data storage – super-size memory for up to 10,000 readings, allowing long-term monitoring
• Seamless data transfer – includes USB cable and PC software for easy logging, archiving, and analysis
• Probes sold separately