
Best selling Detectors from Testo
Here you’ll find the best Detectors from Testo. The ranking is based on the best-selling products from this brand within the category. In addition to sales volume, factors such as availability, pricing, and overall customer relevance also influence the order. For each product, we include a short description and the most important highlights from customer reviews, giving you a quick overview of the most popular Testo options. This page always stays fresh and updates automatically.
1. Testo 270 BT Frittieröl-Tester
The new testo 270 BT frying oil tester enables even easier, faster and more reliable monitoring of frying oil quality thanks to its connection to the testo Smart App. With this new version, you can keep an even better eye on the TPM values of your frying oil and display and analyse all relevant data directly on your mobile device. The testo 270 BT reliably measures the proportion of Total Polar Materials (TPM) in the frying oil and displays it as a per cent. Thanks to the new app connection, you can seamlessly transfer your measurement results to your smartphone or tablet to ensure error-free and digital documentation. Receive instant alerts and recommendations based on your TPM measurements to optimise the quality of your frying oil. The coloured display light clearly indicates the condition of the oil: Green for a healthy TPM level, orange for a critical level and red for exceeded limits. Define individual TPM limit values and secure important instrument configurations with a PIN to prevent accidental changes. The testo 270 BT also retains its proven features: The ergonomic design protects you from direct contact with the hot frying oil. Robust workmanship: The fibreglass housing is extremely impact-resistant. In addition, the oil sensor is embedded in a metal tray and is therefore unbreakable. Easy cleaning under running water (protection class IP65). The option of self-calibration. Optimise your deep-frying processes with the new testo 270 BT and make it even easier to monitor and maintain your high product quality while reducing your oil consumption. Additional function is only available after app registration.

2. Testo pH measuring instrument
PH meter for viscous media. The focus is on meat processing. With its ergonomic design and top-mounted display, the Testo 205 is ideally suited for use in production, incoming goods, and for frequent measurements. Unique is the combination of pH penetration probe and temperature sensor for precise and rapid temperature compensation. The automatic detection of a stable measurement value simplifies the measurement process.

3. Testo Reference oil
Reference oil - for calibrating and adjusting the frying oil meter.

4. Testo 405 i - Thermo-anemometer with smartphone operation
Nothing can surprise you anymore: With the testo 405i thermal anemometer featuring smartphone control from the Testo Smart Probes series, you are well-equipped for measurement tasks in ventilation ducts. Effortlessly, you can determine air velocity, temperature, and volumetric flows with the anemometer. The testo 405i is also suitable for measuring air velocity in rooms, which is practical if you want to locate drafty windows. Additionally, when used in conjunction with the testo 605i thermo-hygrometer, it can also determine cooling and heating performance.
The testo 405i hot wire anemometer combines professional measurement technology from Testo with app-based operation. This allows you to benefit from numerous additional features in your daily work. With the testo Smart App, you can conveniently read measurement values on your smartphone or tablet, eliminating the hassle of deciphering the display in hard-to-reach places. You can also easily measure volumetric flow with the app: simply input the duct cross-section intuitively, and the app calculates it automatically.
The app offers you further practical options: it can not only display measurement data but also analyze and document it. With the app, you can easily determine the temporal and point average. Moreover, it quickly creates a trend display of the measurement data and sends the measurement data logs as PDF or Excel files.
System requirements: iOS 8.3 or newer, Android 4.3 or newer, Bluetooth 4.0.

5. Testo Frittieröl-Temperatur Set
With the testo 270 BT frying oil tester, you can change frying oil at the right time, save money, and document everything seamlessly. The testo 104-IR BT penetration thermometer with an integrated infrared sensor is used for quick and reliable temperature checks within HACCP processes. Connecting the measuring devices to the testo Smart App allows for fast, error-free, and comprehensive documentation of all measurement results.

6. Testo 0572 1626 162 IAQ Multi-Datenlogger Messgrösse CO2, Luftdruck, Temperatur
The online data logger testo 162 IAQ is an easy-to-use climate logger with a display for monitoring temperature, humidity, CO2, and atmospheric pressure with an integrated sensor. The online data loggers testo 162 are part of the testo 160 online data logger system, which consists of hardware components (testo 160, testo 162, testo 164), as well as the testo Saveris Cloud and the testo Smart App. The testo Saveris Cloud serves as the central data platform where measurement values can be viewed and analyzed. A paid Testo Data Monitoring license is required to use the system.
The online data loggers testo 162 record measurement values (temperature, humidity, pressure, and CO2) and send them directly to the testo Cloud via a Wi-Fi connection. In case of limit violations, you will be alerted directly via push notification through the testo Smart App. Alternatively, notifications can also be sent via email or SMS. You can access all measurement values and analysis functions anytime and anywhere with your internet-enabled smartphone, tablet, or PC.
Perfectly connected: With the online data logger testo 162 IAQ and the testo Saveris Cloud. The testo Saveris Cloud is the central control element of the testo 160 online data logger system. With the testo 162 IAQ, you can store your measurement data in the testo Saveris Cloud via an existing Wi-Fi connection. Here, you can configure your online data loggers, set limit alarms, and analyze your measurement data. A valid license (Data Monitoring license) must be purchased for the operation of the online data loggers in the testo Saveris Cloud. The installation of the system is straightforward and can be done via the testo Smart App.

7. Testo 510 Pressure gauge
With the testo 510 differential pressure gauge, heating engineers and HVAC technicians are well-equipped. It measures differential pressure of up to 100 hPa and assists you, for example, in checking filters on air conditioning systems or measuring gas static and gas flow pressure in heating systems. The testo 510 differential pressure gauge allows you to select from the following units: Pa, hPa, mbar, mmH2O, mmHg, inHg, psi, m/s, fpm. Additionally, with an optional pitot tube, you can also measure airflow in the ventilation duct from 10 to 100 m/s.
Practical and precise: Advantages of the differential pressure gauge
- Accurate: For precise measurements, the differential pressure measurement is temperature and air density compensated.
- User-friendly: Small, handy, and easy to operate with just three buttons.
- Smart: Thanks to magnets on the back of the device, you can work hands-free. In poor visibility conditions, such as dark environments, the illuminated display makes your work easier.
- Safe: With a belt pouch and a removable protective cap, the differential pressure gauge is safely stored. The hand strap also ensures it is secure while measuring.
- Ready to go: The silicone connection hose is included in the testo 510 set, allowing you to start your measurements right away.

8. Testo 417-2 Anemometer
The compact testo 417 vane anemometer in Set 2, including two measuring funnels and a rectifier, has been developed to make it as easy as possible for you to take measurements on air inlets and outlets as well as on disc valves and swirl outlets in air conditioning and ventilation systems. The integrated 100 mm impeller quickly provides precise results. Temporal and punctual mean values as well as the volume flow are automatically calculated in the device and shown on the display. This means that controlled domestic ventilation systems can be regulated particularly efficiently - including quick documentation with the testo Smart App. The app not only supports you in configuring the measuring instrument and displays, saves and documents the measured values - it also turns your smartphone into a second display. The testo 417 Set 2 includes two measuring funnels and a volume flow rectifier for precise results, even at swirl outlets.

9. Testo 925 Temperature measuring device
Testo Temperature Measuring Device testo 925
Manufacturer: Testo
Designation: Temperature measuring device for thermocouple type K
Type: testo 925
Display: digital
Multiple display: no
Measuring range: -50 to 1000 °C
Thermocouple type B: no
Thermocouple type E: no
Thermocouple type J: no
Thermocouple type K: yes
Thermocouple type N: no
Thermocouple type R: no
Thermocouple type S: no
Thermocouple type T: no
RTD thermocouple: no
Differential temperature measurement: no
Relative humidity measurement: no
Material moisture measurement: no
Measurement data storage: yes
Interface: yes
Separate probe: yes
Infrared measurement: no
The testo 925 impresses with a wide measuring range of -50 to 1000 °C. It offers simple, fast, and precise temperature measurement, which is crucial for the quality of products, processes, or raw materials. The handling, robustness, and support from the testo Smart App make the device particularly user-friendly. Included in the package is a type K thermocouple probe, and the testo 925 is also compatible with other commercially available type K thermocouples.
The testo Smart App offers the following features:
- Configure the measuring device
- Display graphical measurement history
- Save measurement data
- Manage customers and measurement points
- On-site documentation
- Email report delivery
EAN: 4029547025778.

10. Testo Mini data logger 174 T
The Testo 174 T mini data logger is a sophisticated temperature measuring device designed specifically for professionals in the food and pharmaceutical industries. With a measuring range of -30 °C to +70 °C, it enables precise monitoring of storage conditions. The intuitive configuration and analysis of the measurement data is carried out via the free testo Smart App, which supports complete documentation and compliance with regulations. The app offers functions such as creating reports and exporting data, which makes handling and analysing the measurement data much easier. Thanks to Bluetooth technology, the data can be read out directly at the measuring point up to 30 metres away. In addition, automatic data backup in the event of a flat battery or battery change ensures high measurement reliability, which is crucial for compliance with quality standards in sensitive areas. Intuitive configuration and analysis of measurement data via the testo Smart App. Functions for creating reports and exporting data in the app. Bluetooth data transmission up to 30 metres away. Precise temperature measurement in the range from -30 °C to +70 °C. Automatic data backup in case of empty battery or battery change.
