Product categories
Showing 49–72 of 145 results
-
testo 405 – thermal anemometer
Measures air velocity, volume flow, and temperature.
Measuring air velocity with the new Pocket-line device.
The Testo 405 is a thermal anemometer. It measures air velocity, volume flow, and temperature.Calculates volume flow rates up to 99,990 m³/h
Ideal for duct measurements
Telescopic telescope up to 300 mm
The Testo 405 is a thermal anemometer with a holder, including a battery. -
testo 405 – thermal anemometer
Allows measurement of air velocity, volume flow, and temperature.
Measure air velocity with the new Pocket-line series instrument.
The Testo 405 is a thermal anemometer that allows measurement of air velocity, volume flow, and temperature.- Volume flow calculation up to 99,990 m³/h
- Ideal for duct measurements
- Telescopic probe extendable up to 300 mm
Testo 405 – thermal anemometer with holder, including battery.
-
testo 405i, a thermal anemometer controlled by smartphone/tablet
Including a telescopic probe tube (max. length 400 mm), batteries, and factory calibration protocol
- Measurement of air flow velocity, volume flow, and air temperature
- Simple input of the duct geometry and dimensions for determining the volume flow
- Convenient operation in air ducts thanks to the telescopic probe tube with a maximum length of 400 mm
- Easy control via the testo Smart Probes mobile app (simple data viewing, monitoring of measurement changes, data recording function)
-
testo 410-1 air flow and temperature measuring instrument
Testo 410-1
Includes wrist strap, belt-mounted case, and factory calibration protocol
The Testo 410-1 measures air flow velocity and air temperature. The instrument is ideal for spot measurements at air outlets thanks to its built-in 40 mm vane. It also allows calculation of the time-based mean value. Testo ensures accurate measurements and effortless monitoring of environmental conditions.
Advantages of Testo 410-1
- Measurement of air flow velocity
- Built-in 40 mm vane
- Time-based mean value calculation
- HOLD function for freezing current readings and displaying min/max values
- Display backlight
- Protective cap for safe instrument storage
-
Testo 410-2 anemometer with built-in vane and humidity sensor
With NTC air temperature sensor, including protective cap, batteries, and factory calibration protocol
Testo 410-2 is designed for measuring air flow velocity, temperature, and humidity. The patented, long-term stable Testo humidity sensor ensures precise and reliable measurement results.
Thanks to the built-in 40 mm vane, the instrument is ideally suited for quick spot measurements in air ducts. Time-based averaging is possible. The compact design makes it very convenient to use.- Simultaneous measurement of air flow velocity and air temperature
- Calculation of time-based mean value
- Hold function for freezing the current reading and display of max/min values
- Wind chill calculation for outdoor applications
- Backlit display
- Protective cap for safe storage
- Scope of delivery: wrist strap, belt pouch, and factory calibration protocol
- Measurement of air humidity with the long-term stable Testo humidity sensor
- Calculation of dew point and wet bulb temperature
- Built-in 40 mm vane
-
testo 410i, anemometer for use with an app
Includes batteries and calibration protocol
The testo 410i is a smart probe for measuring air flow velocity, temperature, and calculating air volume flow.
This probe connects to your tablet or smartphone via Bluetooth and is operated directly through the free mobile app.
With the Testo Smart Probes app, your smartphone or tablet becomes the display of the instrument.
Measurement control and data transmission are performed via Bluetooth.
You can also create reports, add photos and comments, and save or export them in Excel or PDF format (for Android), or PDF (for iOS) via email.Technical Specifications of the Testo 410i Probe
Sensor type: Hot wire anemometer
Measuring range: 0.4 to 30 m/s
Accuracy: ±(0.2 m/s + 2% of measured value) in the range 0.4 to +20 m/s
Resolution: 0.1 m/sSensor type: NTC
Measuring range: -20 to +60 °C
Accuracy: ±0.5 °C
Resolution: 0.1 °C -
testo 416, vane anemometer, 16 mm diameter, with app connection
with a transport bag, batteries, and factory calibration protocol
Simple, fast, and precise measurement of flow velocity and calculation of air volume flow in ventilation ducts.
Greater flexibility during duct measurements thanks to the wired telescopic probe (maximum length 850 mm).
Quick configuration via the app (duct settings), graphical data display, second screen functionality, and measurement data storage in the testo Smart App.
Time-based and point-based averaging.
The compact testo 416 vane anemometer with a 16 mm telescopic probe and app connectivity is ideal for simple, fast, and precise determination of air velocity and volume flow in ventilation ducts of air conditioning and ventilation systems.
By connecting to the testo Smart App, you can configure the instrument, display readings (including as a second screen), store and document measurement data directly within the app. -
testo 417, digital anemometer with 100 mm vane diameter
Includes factory calibration protocol and 3 AA batteries
The compact testo 417 anemometer with a built-in 100 mm vane for measuring air velocity and temperature is designed for determining flow velocity, volumetric flow, and temperature. The volumetric flow is displayed directly on the screen. Accurate calculation of volumetric flow is ensured by the easy alignment of the probe with the air duct. In addition, it is easy to switch to the display of the current temperature. The flow direction (e.g. supply or exhaust) is shown on the display. The averaging function over time and number of measurements allows obtaining averaged values of volumetric flow, air velocity, and temperature. An optional funnel set enables efficient measurements at ventilation grilles, round ceiling diffusers, and plate air valves. Min/max values can also be displayed. The Hold function allows you to freeze current measurement data on the display.
- Determination of air flow direction
- Measurement of temperature, air velocity, and volumetric flow
- Averaging of measurement results over time and number of readings
- Display of max/min values
- HOLD function to freeze current readings on the display
- Backlit display
- Automatic power-off function
- Built-in vane D100 mm
-
testo 420, volumetric air flow settings on large ceiling ventilation grilles
testo 420 is an ideal solution for adjusting air volume flow on large ceiling air outlets. This lightweight instrument with a removable measuring hood ensures precise determination of volume flow even on swirl diffusers.
Product advantages:
- Measurement of air volume flow, temperature, and relative humidity on large swirl diffusers
- Exceptionally lightweight design (less than 2.9 kg)
- Accurate measurements even on swirl diffusers thanks to the integrated flow straightener
- Quick setup, intuitive operation, and on-site report generation via the mobile app
-
testo 425, air velocity/temperature measuring instrument with app connection
With telescopic handle (max. 820 mm), including nylon transport bag, batteries, and factory calibration protocol
Simple, fast, and precise measurement of flow velocity and temperature, as well as calculation of volumetric flow in ventilation ducts.
More flexibility during duct measurements thanks to the wired telescopic probe (maximum length 820 mm).
Quick configuration in the testo Smart App (channel), graphical history, second screen function, and storage of measurement data directly in the app.
Time-based and point averaging.
The compact testo 425 thermal anemometer with telescopic probe is ideal for simple, fast, and accurate determination of air velocity and volumetric flow in ventilation ducts of air conditioning and ventilation systems. Connection to the testo Smart App allows configuration, display (also as a second screen), storage, and documentation of measurements directly in the app.
-
testo 440, air velocity and indoor air quality measuring instrument
Includes 3 AA batteries, USB cable, and factory calibration protocol
- Intuitive operation: clearly structured measurement menus for determining volume flow, degree of turbulence, cooling/heating output, mold detection, and long-term measurements such as CO₂ monitoring
- Convenience and compact design: Bluetooth® probes for additional ease of measurement, storage, and transport (probes sold separately)
- Clear data display: large graphic display with three-line measurement value indication
- Easy storage and processing of measurement values: internal memory and USB port for data export
Accurate and efficient measurement of all air velocity and indoor air quality parameters using a single measuring device: a multifunction measuring instrument with intuitive operation and clearly structured measurement menus. Whether you are setting air conditioning and ventilation systems, monitoring indoor air quality, or assessing comfort levels – with interchangeable high-quality digital probes, you are perfectly equipped for any measuring task (probes sold separately).
-
testo 440, Measuring instrument for velocity and indoor air quality
Here is the English translation for the description and features of the testo 440 measuring instrument:
3 AA batteries, USB cable, and factory calibration protocol
- Intuitive operation: Clearly structured measurement menus for measuring volume flow, degree of turbulence, cooling/heating output, mold detection, and long-term measurements such as CO
2
measurement - Convenient and compact: Bluetooth® probes for added convenience during measurement, storage, and transport (probes ordered separately)
- Clear data display: Large graphic display with three rows of measured values
- Convenient saving and processing of measured values: Internal memory and USB port for data export
Accurate and efficient measurement of all velocity and indoor air quality parameters with just one measuring instrument: a multi-functional measuring instrument with intuitive operation and clearly structured measurement menus. Setting up air conditioning and ventilation systems, controlling air quality, or measuring comfort level – thanks to interchangeable, high-quality digital probes, you are perfectly equipped for any measurement task (probes ordered separately).
You can use the testo 440 instrument in combination with high-quality probes for measuring velocity and assessing indoor air quality (probes ordered separately). Up to 3 probes can be connected simultaneously: a Bluetooth probe, a wired probe, and a temperature probe with a Type K thermocouple connector. Automatic probe detection and clearly structured measurement menus will simplify your daily work.
- Intuitive operation: Clearly structured measurement menus for measuring volume flow, degree of turbulence, cooling/heating output, mold detection, and long-term measurements such as CO
-
testo 460, Pocket-sized instrument for measuring rotational speed (RPM)
With protective cap, battery, and factory calibration protocol
The testo 460 instrument is designed for non-contact rotational speed measurement, e.g., for the operation of fans and shafts. The measurement spot is displayed on the object by an LED targeting pointer. By pressing a button, you can read the max/min measured values. The powerful display backlight allows working in dimly lit areas. The testo 460 is a compact, easy-to-use instrument from the Pocket Line series.
Optical RPM measurement with LED targeting pointer for the measurement spot
Display backlight
Convenient data reading even in poor light conditions
Easy data reading thanks to the Hold function
Reflectors, self-adhesive (1 pack = 5 units, 150 mm long each)
-
testo 465, Non-contact rotational speed measurement
Instrument including transport case, reflectors, and batteries
- One-handed operation
- Memory function (last value, average value, min./max. until the next measurement)
- Durability and reliability thanks to the SoftCase protective cover
Using the testo 465 instrument, you can easily measure rotational speed (RPM) in a non-contact manner. Simply attach a reflector to the measurement object, then aim the red light beam of the tachometer at the reflector, and read the data.
Accessories
Reflectors, self-adhesive (1 pack = 5 units, 150 mm long each)Order No.: 0554 0493
-
testo 470, Tachometer
The testo 470 instrument is the ideal combination of optical and mechanical rotational speed measurement (RPM). Mechanical measurements can be performed simply by attaching a probe tip adapter or a rotating wheel for contact rotational speed measurement.
Scope of Delivery
testo 470 instrument in a transport case, including adapter, probe tip, SoftCase protective cover, wheels for contact rotational speed measurement, reflectors, instrument batteries, and factory calibration protocol. -
testo 476, Pocket-sized portable stroboscope StrobeTM
Including transport case, charger with 4 mains adapters for different countries, and trigger output
With the testo 476 Pocket StrobeTM portable stroboscope, you can measure and check rotation and vibration. The instrument facilitates the measurement of small objects, as well as objects located in hard-to-reach places. You can carry out all measurements directly “on the go.”
The testo 476 is ideal for measuring rotational speed and allows for assessing the condition of parts moving at high speed.
-
testo 477, Stroboscopic tachometer
The testo 477 LED portable stroboscope measures rotational speed and vibration intensity and allows for measurements to be performed while aggregates are running. The possibility of stationary installation allows for the inspection and quality assessment of components with high rotational speeds.
-
testo 510i, Differential pressure manometer, controllable via smartphone/tablet
Gas Pressure Measurement
- Pressure drop test mode with alarm signal
- Convenient to use in case of widely separated measurement points
- Magnet in the instrument housing for secure fixation on a metal surface
Smart technology in a convenient design: the compact testo 510i differential pressure manometer smart probe is a professional, smartphone-controlled measuring instrument designed to determine differential pressure, air flow velocity, and air volume flow. The testo Smart Probes mobile app allows you to view measurement data on your smartphone/tablet and send it via e-mail.
-
testo 511 – absolute pressure measuring instrument
Includes protective cap, battery, and calibration protocol Testo 511 measures absolute pressure with an accuracy of ±3 hPa. By entering the altitude above sea level, it can automatically calculate barometric air pressure.
Additionally, barometric altitude measurement between two points is possible.- Measures absolute pressure, e.g. for absolute pressure compensation when measuring flow velocity using a Pitot tube
- Illuminated display
- Selectable units: hPa, mbar, Pa, mmH₂O, mmHg, inH₂O, inHg, psi, m, ft
-
testo 512-1, Differential manometer with app connectivity
Measurement range 0 … 200 hPa, acoustic alarm, carrying bag, silicone connecting hose, factory calibration protocol, 3 x AA batteries
Simple, fast, and accurate differential pressure measurement (0…200 hPa) for checking filters and Pitot tube measurement in the ventilation duct.
Reliable measurement results thanks to the position-independent differential pressure sensor with high accuracy.
Fast setup in the app (channel), graphical history, second screen, and storage of measurement data in the testo Smart App.
Volume flow calculation in the measuring device and the app.
The compact testo 512-1 differential pressure measuring instrument (0…200 hPa) is the ideal solution for simple, fast, and accurate measurement of gas flow and gas static pressure in heating systems, for checking filters in air conditioning systems, and for Pitot tube measurement in ventilation ducts. The testo Smart App supports useful functions such as configuration, display (also as a second screen), and saving, as well as documenting the measured values directly in the app.
-
testo 512-2, pressure gauge with app connection
Measurement range: 0 … 2000 hPa, acoustic alarm, carrying case, silicone connection hose, factory calibration protocol, 3 x AA batteries
Simple, fast, and precise measurement of differential pressure (0…2000 hPa) for filter checks and Pitot tube measurements in ventilation ducts.
Reliable measurement results thanks to a highly accurate differential pressure sensor that operates independently of position.
Quick configuration in the testo Smart App (channel), graphical history, second screen function, and storage of measurement data directly in the app.
Calculation of volumetric flow in the measuring device and in the app.
The compact differential pressure measuring instrument **testo 512-2** (0…2000 hPa) is the ideal solution for simple, fast, and accurate measurement of gas flow and static gas pressure in heating systems, filter checks in air conditioning systems, and Pitot tube measurements in ventilation ducts.
The **testo Smart App** supports useful functions such as configuration, display (also as a second screen), storage, and documentation of measurement values directly within the app. -
testo 535, CO2 measuring instrument
Gas analyzer with app connectivity and acoustic alarm, transport bag, batteries, and factory calibration protocol
Simple, fast, and accurate CO2
concentration measurement
Acoustic alarm when limit values are exceeded
Fast configuration in the app, graphical history, second screen, and storage of measurement data in the testo Smart AppHigh reproducibility of measurement results thanks to the long-term stable infrared sensor system
The testo 535 gas analyzer is ideally suited for simple, fast, and accurate determination of carbon dioxide levels to ensure indoor air quality and, consequently, health and productivity. Connecting to the intelligent testo App allows you to configure, display, store, and document readings directly within the app.
-
testo 540, Illuminance
Features:
- The sensor adapts to the spectral sensitivity of the human eye
- The Hold function facilitates reading the measurement data
- Max./Min. values
Application:
Evaluation of illuminance in workplacesOrder No. 0560 0540
-
testo 545, Lux meter with app connectivity, acoustic alarm
Carrying bag, factory calibration protocol, 3 AA batteries
Simple, fast, and accurate measurement of illuminance (lux) for all common light sources according to the V-lambda curve.
Wide range of application thanks to compatibility with $\text{LED}$s (except single-color blue $\text{LED}$s).
Fast setup in the app, graphical history, second screen, and storage of measurement data in the testo Smart App.
Acoustic alarm when limit values are exceeded.
With the compact testo 545 lux meter, you can easily, quickly, and accurately measure the illuminance of all common light sources to ensure performance, productivity, and health in workplaces. The testo Smart App supports useful functions such as configuration, display (also as a second screen), as well as storage and documentation of measured values directly in the app.




