testo 417 Digital 100 mm Vane Anemometer
The testo 417 is a simple, accurate tool for measuring airflow in ventilation systems. It is designed for HVAC professionals who need fast results at air inlets and outlets, without complicated setup.
With a built-in 100 mm vane and smart App connection, this anemometer measures flow velocity and volume, as well as temperature at air inlets. It helps you set up, check and balance ventilation systems with confidence.
Why Choose the testo 417 Vane Anemometer?
The testo 417 vane anemometer is easy to use and gives reliable readings, even when airflow changes. It works well for measurement on air inlets and outlets in homes and small commercial buildings.
Using the testo Smart App, you get fast in app configuration graph history second screen support. This means you can see live results on your phone, review past readings and store data using the built-in measurement data memory.
The instrument automatically calculates volume flow and time and point average values, making ventilation balancing quicker and easier.
testo 417 Key Features:
- Measures airflow, volume flow and temperature
- Accurate readings at air inlets and outlets
- Automatically calculates time and point average values
- Smart App with graph history and second screen display
- Compact, strong design for daily use
What comes with the testo 417?
- testo 417 – Digital 100 mm vane anemometer with App connection
- Transport bag
- Calibration protocol
- 3 × AA batteries
Best for: The testo 417 main unit is best if you only need basic airflow and temperature checks without extra accessories. Quick checks of airflow and temperature at air inlets where measuring funnels are not needed. The testo 417 anemometer main unit is light, portable and easy to use.
testo 417 Vane Anemometer Kit 1 – With Measuring Funnels
The testo 417 vane anemometer kit 1 is designed for more accurate volume flow measurement at ventilation terminals.
It includes two measuring funnels for plate outlets and ventilation grilles, allowing airflow to be captured properly across a range of outlet sizes and formats. This helps you achieve precise results when balancing ventilation systems.
Best for: Residential ventilation balancing and commissioning. The testo 417 kits are ideal when accurate volume flow readings are required at grilles and plate outlets.
testo 417 Vane Anemometer Kit 2 – Complete Measurement Solution
The testo 417 vane anemometer kit 2 is the most complete option. It includes everything in Kit 1, plus a volume flow straightener.
The flow straightener allows results even at swirl outlets, where airflow is more complex and harder to measure accurately.
Best for: Advanced ventilation work, including swirl diffusers. The testo 417 vane anemometer kit 2 delivers reliable results in all airflow conditions.
▶ See how the testo 417 delivers fast, accurate airflow measurements:
Smart App Connectivity – Simple and Efficient
Every testo 417 anemometer connects to the testo Smart App, giving you:
- Fast setup and easy controls
- Graph history and live readings on a second screen
- Automatic volume flow and average calculations
- Secure measurement data memory for reports
This makes it easier to work on site and produce clear documentation.
| Features | |
| Sensor types |
| Vane (m/s, fpm) |
| Measuring range | 0.3 to 20 m/s |
| Accuracy ±1 digit | ±(0.1 m/s + 1.5% of m.v.) |
| Resolution | 0.01 m/s |
| Volume flow calculation (m³/h, cfm, l/s) |
| Measuring range | 0 to +99,999 m³/h
0 to +440 m³/h (testo 417 in combination with funnel kit 0563 4170)
0.1 to +200 m³/h, preferably 0.1 to 100 m³/h (testo 417 in combination with funnel & flow straightener 0554 4172) |
| Resolution | 0.1 m³/h (0 to +99.9 m³/h)
1 °C/h (remaining measuring range) |
| NTC (°C, °F) |
| Measuring range | 0 to +50 °C |
| Accuracy ±1 digit | ±0.5 °C |
| Resolution | 0.1 °C |
| General technical data |
| Operating temperature | -20 to +50 °C |
| Storage temperature | -20 to +50 °C |
| Battery type | 3 x AA |
| Battery life | 50 h |
| Dimensions | 236 x 108 x 45 |
| Weight | 243 g |
| Protection class | Measuring instrument: IP 40
Probe: IP20 |
| Housing material | ABS + PC / TPE |
❓ Frequently Asked Questions (FAQ)
Q1: What does the testo 417 measure?
A. 417 measures airflow speed, volume flow and air temperature.
Q2: What’s the difference between the main unit and the kits?
A. The main unit is just the anemometer. Kit 1 adds two measuring funnels. Kit 2 adds the funnels plus a flow straightener for swirl outlets.
Q3: Are the kits good for residential ventilation?
A. Yes. They are designed to make residential ventilation balancing faster and more accurate.
Q4: Do I need the App to use the testo 417?
A. No. The instrument works on its own, but the App makes setup, data storage and reporting much easier.
Choose the Right testo 417 for Your Job
Whether you need the simple testo 417 main unit or the full vane anemometer kit 2, there is a solution for every airflow task. Accurate, easy to use and built for professionals, this anemometer helps you get the job done right.