Including batteries and a factory calibration protocol
Measurement of high and low pressure
Minimal refrigerant loss due to hoseless connection
In the testo Smart Probes App, measurement data is displayed as a graph or table and can then be forwarded
Convenient operation at remote measuring points thanks to a large Bluetooth® range of up to 100 m
The testo 549i professional compact high-pressure gauge is controlled via the testo Smart Probes mobile App on your smartphone or tablet. This instrument is ideal for servicing and diagnosing refrigeration and air conditioning systems. Using the mobile App, you can also automatically calculate evaporation and condensation temperatures.
All steps, from measurement to documentation, using the testo Smart App on your smartphone
The smallest digital manifold on the market
Maximum reliability thanks to an extremely robust casing with IP54 protection class
Expandable with Testo Smart Probes for measuring temperature, humidity, and vacuum
Testo 550i is the App-controlled digital manifold with Bluetooth
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, a 2-way valve block, and a robust hook offering extensive measuring technology in an exceptionally compact format. Use this extremely durable manifold to carry out daily work on refrigeration and air conditioning systems, as well as on heat pumps, wirelessly, with ease and reliability. And all this using the testo Smart App on your smartphone or tablet.
All results are clearly visible on the large graphic display
Exceptional compactness and reliability thanks to a convenient and robust casing with IP 54 protection class
Simple, wireless, and flexible measurements and documentation of results: automatic connection to temperature and vacuum probes via Bluetooth®, the testo Smart App for documentation, and other useful functions.
With this set, you will be immediately ready for the necessary measurements for commissioning, service, and maintenance of refrigeration systems, air conditioning systems, and heat pumps: the set includes the testo 550s digital manifold with a 2-way valve block and Bluetooth, two pipe clamp probes (NTC) with fixed cable, and a robust transport case. Additional Bluetooth probes, for example, for measuring temperature and vacuum, can be ordered separately.
Including batteries and a factory calibration protocol
Fast and simple vacuum detection using graphs in the App or on the display of a digital manifold
Automatic Bluetooth connection to the testo Smart App and digital manifolds
Exceptionally compact and reliable thanks to a convenient and robust casing with IP 54 protection class
Easily connects to any service port with the integrated 45° angled connector
Use the testo 552i Bluetooth vacuum probe for fast, simple, and accurate vacuum measurement through just one service port – with no refrigerant loss. In the testo Smart App, you’ll have numerous smart functions—for example, you can see the vacuum just by glancing at the graph in the App or on the manifold’s display. Thanks to the robust, convenient casing and proven sensor technology, the vacuum probe will be your reliable partner for measurements in refrigeration, air conditioning, and heat pump systems.
Including batteries (4 AA cells) and a factory calibration protocol
Thanks to the touchscreen and the large color display, configuration, control, and documentation are significantly simplified. This makes operating the manifold intuitive and fast. For use with gloves, the manifold can also be operated using buttons in addition to the touchscreen.
Ready for use with any refrigerant
For maximum safety, the manifold is also compatible with flammable refrigerants of classes A3 and A2L. Thanks to a wide selection of over 96 refrigerants, all common refrigerants are stored in the manifold. Frequently used refrigerants can be marked as favorites so they can be quickly found at any time.
With a high accuracy of 0.25 full-scale measurements and a new clear measurement graph, equipment evaluation becomes simple and reliable.
Data evaluation is significantly simplified thanks to new 30-minute trend graphs. Expansion to long-term measurement is possible upon request and available for an additional charge via the testo Smart App. This allows data to be tracked and analyzed over a longer period of time.
Readings can be directly exported and sent as a measurement log via the testo Smart App, allowing documentation to be completed in a few clicks right on site.
Whether it’s superheat and subcooling, leak testing, pressure drop, evacuation, or filling – thanks to a wide range of measurement programs and the ability to connect to the entire Testo refrigeration portfolio, all applications can be monitored and documented using the manifold.
The IP 54 protection class ensures high robustness and durability.
Thanks to free Over-the-Air Updates (OAT), the manifold can be regularly updated. For example, this is used to add new refrigerants and ensure connectivity to new products.
Automatic and precise refrigerant charging according to set superheat, subcooling, and weight thanks to the intelligent valve
Wireless connection and operation with Testo manifolds and the testo Smart App via Bluetooth
All measured values for the charging process at a glance, with measurement data stored in the testo Smart App
Particularly convenient thanks to the compact casing, low weight, practical carrying handle, and robust shoulder bag
Charge refrigeration systems and heat pumps faster, more accurately, and automatically with the testo 560i instrument, the intelligent refrigerant valve, a Testo digital manifold, and/or the testo Smart App. Simply enter the charging program and the target value for superheat, subcooling, or weight into the manifold or App, and the scales and valve will do the rest for you.
Your advantages: time savings and precise system charging.
Fully automated evacuation process with integrated hold test when used in combination with the testo 552i vacuum gauge
Can be safely used even with flammable refrigerants of classes A3 and A2L
One app for everything: configure and monitor measurements, and manage data using the testo Smart App
Easy oil change and sight glass for quick assessment of the oil level
Check valve to prevent vacuum loss in the event of a power cut
Perfect interaction between workflows thanks to full compatibility with the entire Testo range of refrigeration equipment
The Testo 565i dramatically simplifies the evacuation process. Thanks to its smart technology and connection to the testo 552i vacuum gauge, the 565i automatically stops evacuation when the set target value is reached and automatically initiates the vacuum hold check. This means the entire process happens automatically. The Testo 565i has also proven its effectiveness due to its high quality, which allows it to be used safely even with flammable refrigerants of classes A2L and A3.
Humidity measurement – simple and convenient
The Testo 605-H1 is a compact and easy-to-use thermo-hygrometer. It measures the relative humidity and air temperature, and additionally calculates the dew point temperature. The Testo 605 is ideal for monitoring air humidity in ducts.
Automatic calculation of dew point and wet-bulb temperature
View and analyze measured values, and create and send reports using the testo Smart Probes mobile app
Identification of areas at risk of condensation and mold using traffic light color indication
Measurement range: 0 to 100% RH; -20 to 60 °C
The compact Bluetooth thermohygrometer testo 605i offers professional measurement technology in an innovative format. In combination with a smartphone or tablet, the device is ideal for measuring air temperature and relative humidity in rooms and air ducts.
Measuring instrument including battery – testo 608-H1 Hygrometer, Humidity/Dew Point/Temperature. Measuring instrument including battery
A reliable and accurate humidity sensor is essential for humidity measurements that you and your customer can trust. The testo 608 is equipped with a patented Testo® humidity sensor, with accuracy confirmed by seven worldwide national standardization laboratories, allowing you to perform measurements with confidence.
Built-in patented Testo® humidity sensor
Continuous measurement of relative humidity, dew point, and temperature
Display of min/max values with reset function
Low battery indicator
The instrument can be placed directly on the workplace or mounted on the wall
A reliable and precise humidity sensor is essential for measurements you and your customer can trust. The testo 608 is equipped with the patented Testo® humidity sensor, whose accuracy is validated by seven national standardization laboratories worldwide, allowing you to perform measurements with confidence.
All advantages of the testo 608-H1
Optical alarm signal when exceeding upper or lower set points for temperature, humidity, or dew point
Guaranteed accuracy: ±2 % RH across the entire measurement range
Includes calibration protocol
Built-in calibration function using the Testo reference system
Accurate measurement of temperature, humidity, and pressure.
Displays all data, including date and time.
Large, easy-to-read display. Configurable calibration reminder function.
Sensor accuracies:
Temperature: ±0.4 °C + 1 digit
Humidity: ±2 % RH + 1 digit at 25 °C (10 … 90 %)
Application: Laboratory
Absolute pressure: ±3 hPa + 1 digit
Instant display of key values:
Temperature, humidity, pressure, date, and time
Selectable units:
Temperature: °C, °F
Humidity: % RH, dew point (td), wet bulb (wb)
Pressure: hPa, mbar, kPa, in Hg, in H₂O, psi
Maximum and minimum values with a single button press
The histogram displays temperature and humidity values over past days – an overview is available for up to 12 weeks. For the selected time interval, 12 histogram bars show intermediate values over the last 5 minutes, 10 minutes, 1 hour, 2 hours, or 12 hours.
Sensor Accuracy:
* Temperature: ±0.4 °C + 1 digit
* Humidity: ±2 % RH + 1 digit at 25 °C (10 … 90 %)
With app connection and audible alarm, including nylon transport bag, batteries, and calibration protocol
Simple, fast, and precise measurement of air temperature and relative humidity.
Calculation of dew point and wet bulb temperature.
Quick setup in the app, graphical history, second screen, and storage of measurement data in the testo Smart App.
Audible alarm when limit values are exceeded.
With the compact testo 625 device, you can easily, quickly, and accurately measure air temperature and relative humidity to assess indoor air quality or ensure optimal conditions in storage facilities.
The testo Smart App provides useful functions such as configuration, display (also as a second screen), as well as storage and documentation of measured values directly in the app.
Selectable analog signal outputs and optional display (depending on configuration)
Transmitter for measuring differential pressure in the range from 100 Pa to 2 bar
A **solenoid valve** for **automatic zero point adjustment** guarantees high accuracy independent of temperature and long-term stability
An **external interface** for adjustment and analysis saves time and reduces costs for commissioning and maintenance
Optional display
testo 6321 differential pressure transmitter, accuracy **±1.2%** of the measuring range, **automatic “zero point” adjustment**, selectable measuring ranges from **100 Pa to 2000 hPa**, selectable analog signal outputs, external digital interface for adjustment and parameterization, optional display.
This instrument measures air humidity, equilibrium moisture of materials, and dew point under pressure in compressed air systems. The display can show data from three humidity or temperature probes; data transmission can be done wirelessly using the radio option 9* (please check if this option is available in your country). Measurement data can also be sent to a Testo printer via the infrared port. During cyclic printing, data can be printed at regular intervals, e.g., once per minute. The instrument instantly shows the dew point difference between air temperature and the surface temperature of walls when analyzing wall and ceiling moisture. Precise probes are used for measuring dew point under pressure in compressed air systems, down to -60 °C. The Testo humidity sensor is globally recognized for outstanding accuracy, long-term stability, temperature resistance, and durability.
Print measurement data on-site using a Testo printer
Cyclic data printing on the Testo printer, e.g., once per minute
Measurement of humidity, material equilibrium moisture, and dew point under pressure
Radio probes for measuring temperature and humidity
with memory, PC software, and USB cable for data transfer, including battery and calibration protocol
The instrument is designed for measuring air humidity, material equilibrium moisture, and pressure dew point in compressed air systems. Humidity characteristics can be stored in the device’s memory, analyzed, and then displayed in graphical or tabular form. The device’s display can show data from up to three radio probes for humidity or temperature, transmitted wirelessly via the radio option (*please check the availability of this option in your country).
Selectable user profiles – for example, assigning specific function keys to particular tasks – and a user-friendly menu make the instrument intuitive to operate. Material humidity can be displayed instantly when a special probe is connected.
Characteristics for different materials can be pre-set in the ComSoft software and transferred to the instrument.
When analyzing wall and ceiling humidity, the instrument immediately displays the dew point difference between air temperature and wall surface temperature.
For measuring the pressure dew point in compressed air systems, high-precision probes are available (up to -60 °Ctd).
The Testo humidity sensor is recognized worldwide for its outstanding accuracy, long-term stability, temperature resistance, and robustness.
Internal memory for 10,000 measurement datasets
PC software for analysis, archiving, and documentation of measurement data
Measurement of air humidity, material equilibrium humidity, and pressure dew point in compressed air systems
Wireless radio probes for temperature and humidity
Calculates volumetric flow and flow velocity parameters, with optional humidity and temperature measurement, selectable measuring ranges from 10 Pa to 1000 hPa, selectable analog signal outputs, and optional display (depending on configuration).
Automatic zero point adjustment guarantees high accuracy independent of temperature and long-term stability
The low measuring range from 10 Pa ensures the highest accuracy for low pressure measurement
Transmitter for measuring differential pressure, flow velocity, and volumetric flow, as well as, optionally, humidity and temperature
Signal alarm function configuration: possibility to set signal delay and select the alarm acknowledgment type
testo 6381 differential pressure transmitter with flow velocity calculation function and optionally with temperature/humidity measurement function, accuracy ±0.5% of measuring range, automatic “zero point” adjustment, selectable measuring ranges from 10 Pa to 1000 hPa, selectable analog signal outputs, external digital interface for adjustment and parameterization, optional display, data output in all pressure, flow, and humidity units.
testo 6383 for cleanroom applications, with optional humidity and temperature measurement, selectable measuring ranges from 10 Pa to 10 hPa, selectable analog signal outputs, and optional display (depending on configuration)
The flat housing allows for flush mounting on the cleanroom wall
The low measuring range from 10 Pa ensures the highest accuracy for low pressure measurement
Transmitter for measuring differential pressure, as well as, optionally, humidity and temperature
Automatic zero point adjustment guarantees high accuracy independent of temperature and long-term stability
testo 6383 differential pressure transmitter for cleanroom applications (panel mounting), optionally with temperature/humidity measurement function, accuracy ±0.3% of measuring range, automatic “zero point” adjustment, selectable measuring ranges from 10 Pa to 10 hPa, selectable analog signal outputs, external digital interface for adjustment and parameterization, display, data output in all pressure and humidity units.
testo 6621 in wall or duct version, with selectable analog signal outputs, incl. two-line display (option), external interface for adjustment and commissioning, two analog outputs
Transmitter with two analog outputs (temperature/humidity)
High-precision Testo humidity sensor with long-term stability
Adjustment without dismounting the transmitter
P2A software for parameterization, adjustment, and analysis
testo 6621 temperature/humidity transmitter, accuracy ±2.0 % RH, wall or duct version, selectable analog signal outputs, optional display, external digital interface for adjustment and parameterization, 2 analog outputs
