The Testo 0636 9771 High-Precision Digital Humidity/Temperature Probe with Bluetooth measures relative humidity and air temperature when used with a compatible Testo multifunction measuring instrument (sold separately). Dew point, wet bulb temperature, absolute humidity as well as the heating and cooling output are calculated at the same time. The readings of the humidity/temperature probe are transmitted to the measuring instrument via Bluetooth, up to a distance of 65 feet (20 m).

Individual readings store directly in the measuring instrument by pressing the button on the humidity/temperature 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. These trends enable you to evaluate changes in the data.

The humidity/temperature probe can be depended on for reliable measurement results, because it is equipped with a high-precision, long-term stable humidity sensor. This sensor measures the humidity with an accuracy of ± (0.6% RH + 0.7% of m.v.) in the range between 0 and 90% RH and is traceable to international humidity standards, such as ILAC, PTB and NIST.

Wireless and Space-Saving: More Applications, Less Equipment

The universal handle can be connected to all probe heads - so you can master more applications using less equipment and save space. The Bluetooth handle furthermore makes it more convenient to carry out your measurement and guarantees less cable clutter in the case. Alternatively, the cable handle (sold separately) can also be connected to Testo probe heads. This is an advantage if Bluetooth signals are not permitted. If the humidity sensor needs to be replaced in the distant future, you can change the probe head.

Intelligent Calibration Concept

Users receive exceptionally accurate measurement results with the digital probe, because the measuring instrument makes measurement uncertainty a thing of the past. Only the probe head needs to be sent in for calibration - allowing the measuring instrument to remain in continuous use.

Areas of Application for the High-Precision Humidity/Temperature Probe

Critical processes: Use the humidity/temperature probe wherever precise measurement results are crucial. For example, to guarantee the process climate in cleanrooms, to ensure consistent quality in industrial processes or to calibrate climatic test cabinets in laboratories according to the DAkkS directive 5-7.

Ventilation ducts: The humidity/temperature probe is particularly suitable for high-precision humidity and air temperature measurements in ventilation ducts, because the probe head is 12 mm in diameter. Dew point, wet bulb temperature and absolute humidity are automatically calculated in the compatible measuring instrument.

Storage and refrigerated rooms: Thanks to a large measuring range of 0 to 100% RH and -20 to +70 °C, you can measure relative humidity and air temperature in storage and refrigerated rooms with a high level of accuracy and reliability.

Work rooms: If the air is too dry or too humid, this affects our well-being and the comfort level. Use the humidity/temperature probe to monitor relative humidity, air temperature, dew point and wet bulb temperature in work rooms. For long-term measurements, measurement data trends can be recorded in the compatible measuring instrument.

Refrigeration systems and heat pumps: Heating and cooling output are important parameters for adjusting refrigeration systems and heat pumps. Use the humidity/temperature probe to measure the relative humidity and air temperature (for this measurement please order two humidity/temperature probes). The heating and cooling output are automatically calculated in the compatible measuring instrument.