Testo Smart Probes: Compact Bluetooth Instruments

Testo Smart Probes: Compact Bluetooth Instruments

Testo SE & Co. KGaA is a world leader in the production and retail of measuring instruments and systems. One of their innovative products is the Testo Smart Probes—a compact, easy-to-use, and highly efficient range of Bluetooth-enabled instruments for precise measurements.

This blog post will delve into the unique features and applications of the Testo Smart Probes, providing an in-depth analysis of their usage in various industries. From HVAC to refrigeration, discover how these miniaturized tools are reshaping on-site measurements and diagnostics.

What are Testo Smart Probes?

Testo Smart Probes are a range of compact, wireless measuring instruments designed for professional use. These devices require a mobile end device such as a smartphone or tablet via Bluetooth to their smart probes app, allowing for real-time monitoring and data analysis. The Testo Smart Probes consist of various individual probes that can measure temperature, humidity, pressure, flow velocity, and more. They can also be used for gas leak detection and inspections of heating, ventilation, and air conditioning (HVAC) systems.

The Testo Smart Probes work by connecting to the free Testo Smart Probes App, available for both iOS and Android devices. The app serves as a central hub for all measurements and data analysis, providing real-time readings and visualizations of the collected data. Users can also save measurement data in the app or export it to other programs for further analysis. The app also offers various features such as photo documentation, report generation, and remote measurement for even greater convenience and efficiency.

Different Types of Testo Smart Probes

The Testo Smart Probes range consists of different individual probes, each designed for specific applications. These include:

  • Testo 115i Clamp Thermometers: A clamp thermometer probe for measuring pipe operating temperature.
  • Testo 405i Wire Anemometers: Measures air velocity, volume flow, and operating temperature.
  • Testo 410i Vane Anemometer: For measuring air flow velocity, volume flow, and operating temperature.
  • Testo 605i Thermohygrometers: Designed for monitoring humidity and temperature.
  • Testo 805i IR Thermometers: Measures surface temperatures without contact.
  • Testo 510i Differential Pressure Gauges: Measures differential pressure used for air conditioning and ventilation systems.
  • Testo 805i Infrared Thermometers: Wireless thermometer that measures surface temperatures.
  • Testo 605i Thermohygrometers: Measures temperature and humidity.
  • Testo 549i High Pressure Gauges: Used to measure system pressure in high-pressure refrigeration.

Each Smart Probe can be used individually or in combination with other Testo Smart Probes to provide a comprehensive analysis of various parameters in different settings. There also exist additional testo smart probes.

You can find all the different probes here

Connecting Smart Probes to the Testo Smart App

Connecting the Testo Smart Probes to the Testo Smart App is a seamless process designed for user convenience. First, ensure that the Bluetooth on your mobile device (smartphone or tablet) is switched on. Next, open the Testo Smart App, which will automatically start searching for available Smart Probes in its vicinity. Once your Smart Probe is detected, it will appear on the app's screen. Just click on the respective device to establish a connection.

The Testo Smart App is capable of simultaneously connecting and displaying data from multiple Smart Probes, thus enabling comprehensive system diagnostics. Furthermore, the app allows you to configure each connected Smart Probe according to its specific application. This seamless integration between the Testo Smart Probes and the Testo Smart App not only simplifies the process of data acquisition but also fosters an efficient and responsive working environment. The data collected by the probes can also be shared with colleagues and clients for more in-depth analysis and collaboration.

Advantages of Testo Smart Probes?

The Testo Smart Probes offer many advantages over traditional measuring instruments, making them a popular choice among professionals in various industries. These include:

  • Compact and Portable: The Testo Smart Probes are small and lightweight, making them easy to carry around and use in different settings.
  • Wireless Connectivity: With Bluetooth connectivity, users can connect the probes to their smartphones or tablets, eliminating the need for additional wires and cables.
  • Real-time Monitoring: The Testo Smart App provides real-time readings and visualizations, allowing users to monitor measurements as they happen.
  • Efficient Data Analysis: The app also offers various tools for data analysis, making it easier to interpret and utilize the collected data.
  • Cost-effective: With the ability to measure multiple parameters with just one device, Testo Smart Probes offers cost savings and increased efficiency compared to traditional instruments.

Disadvantages of Testo Smart Probes

While the Testo Smart Probes offer many advantages, there are also some limitations to consider. These include:

  • Bluetooth Range: The Bluetooth connectivity has a limited range, and users may experience connection issues if they move too far from the probes.
  • Smartphone Dependence: Since the app is required for data collection and analysis, users must have a compatible smartphone or tablet to use the Testo Smart Probes.
  • Battery Life: The Testo Smart Probes rely on battery power, and users must ensure that they have enough AAA battery life to complete their tasks.
  • Precision: While the Testo Smart Probes offer accurate measurements, they may not be as precise as some traditional instruments due to their compact size and design.

Test Smart Probes For Testing Purposes

Testo Smart Probes can be used for various testing and experimentation purposes. The compact size and wireless connectivity make them ideal for collecting data in unique or challenging environments.

My experience with the probes is that they are compact measuring instruments that are useful and simple for the specific measuring task each probe is made for.

For me, the perfect scenario is measurements involving heating where the temperature measuring point or pressure measuring points move, and cabled sensors are not practical.

A Testo Smart Probe is just so easy to set up. Open the app, press the button on multiple probes and you are ready to measure heating systems, air conditioning systems, or whatever you need to measure.

The Smart App also allows you to measure a whole bunch of different parameters with automatic calculations give you technical data and create custom reports in Excel files.

Where this system struggles is when you need to combine these Smart Probes with other digital gauges and sensors.

But don't worry!

We have made an integration to our test software SAFE that can connect and log data from the Testo Smart over your network. So you can combine the best of Testo Smart Probes with your other equipment.

Connecting Testo Smart Probes with Other Sensors

To connect the testo smart probe system to measurement systems with other sensors, you will need your Testo Smart Probes and the Smart App together with our test software SAFE.

SAFE can log data live from the Testo Smart App at the same time as it logs data from any of the other test hardware that is supported by SAFE. So if your test requirements are more advanced than what the Testo Smart App can do.

Then download and try SAFE now

Other Applications of Testo Smart Probes

Testo Smart Probes have a wide range of applications in various industries. Some common uses include:

HVAC Systems

The Testo Smart Probes are ideal for HVAC technicians, allowing them to quickly and accurately measure temperature, humidity, air velocity, and other parameters in heating and cooling systems and air conditioning systems. This helps technicians diagnose issues and ensure optimal performance of HVAC systems.

Refrigeration Systems

The Testo Smart Probes are also used in refrigeration systems to measure pressure, temperature, and other critical parameters. This allows for proper maintenance and troubleshooting of refrigeration equipment.

Building Inspections

The compact size and wireless connectivity of the Testo Smart Probes make them suitable for building inspections. From detecting gas leaks to measuring air quality, these probes provide a comprehensive analysis of different environmental conditions in buildings.


In laboratory settings, Testo Smart Probes can be used to measure temperature and humidity in sensitive areas such as incubators, refrigerators, and freezers. The wireless connectivity also allows for remote monitoring and data analysis.

Food Safety

In the food industry, it is essential to maintain proper temperature and humidity levels for storing and transporting perishable goods. The Testo Smart Probes are used to monitor these parameters and ensure food safety compliance.

Automotive Industry

In the automotive industry, Testo Smart Probes are used to measure exhaust gas temperature and pressure in vehicles. These probes can also detect leaks and help technicians diagnose engine issues.


Testo Smart Probes offer a convenient and efficient way for professionals to monitor and analyze various parameters in different settings. With their compact size, wireless connectivity, and advanced features, these probes have become a valuable tool in industries such as HVAC, refrigeration, and building inspections. Despite some limitations, the benefits of using Testo Smart Probes outweigh the drawbacks, making them a popular choice for professionals seeking accurate and reliable measurements. So whether you're an HVAC technician or a food safety inspector, consider incorporating Testo Smart Probes into your toolkit for more efficient and effective data collection and analysis.