This portable, two-port temperature and humidity meter enables the temperature and humidity level to be measured simultaneously.
The two-line LCD display enables the temperature and RH level to be visualised simultaneously.
Possible to date measurements and export them to an infrared printer.
Dew point calculation.
Hold, min. and and max. functions
Auto power-off if not being used.
Probes must be ordered separately.
Can be used with an infrared printer.

When you need to accurately measure temperature and humidity levels in enclosed spaces, use this hygrometer probe from Testo. It's compatible with hygrometers from the 635 series for ease of use. Thanks to its broad temperature measurement range of -20°C to +70°C, it's a versatile choice for use in a variety of demanding environments. The relative humidity (RH) measurement range of 0% to 100% means it can detect both extremely high and extremely low levels of water vapour. For added convenience, this unit comes with a fixed 110cm cable so you can use it in hard-to-reach places.

• Light weight of 50g for portability
• Small 12mm probe shaft fits easily in tight spaces
• High temperature accuracy rate of ±0.2°C ensures precise results

• HVAC (heating, ventilation and air conditioning) systems
• Storage facilities
• Building maintenance
• Pharmaceutical industry

This probe has a high stability rate of ±1% per year, so you can rest assured that it'll deliver accurate results for years to come.