The Testo 417 Kit 2 is the complete version of the 417 vane anemometer, adding two funnel sizes and a flow straightener to the same 100mm integrated vane used in Kit 1. It's built for the full range of HVAC work — duct testing, ventilation commissioning, swirl outlets, and any application where turbulent airflow would otherwise compromise reading accuracy.
The instrument itself is identical to Kit 1: the same 100mm vane, automatic time and point average calculations, Testo Smart App connectivity, and 50-hour battery life from 3 x AA batteries. The difference is in the accessories. The two funnel sizes extend the range of outlets and grilles that can be measured accurately, while the flow straightener conditions turbulent or non-uniform airflow before it reaches the vane — a requirement for reliable readings at certain outlet types.
With the flow straightener fitted, volume flow measurement runs from 0.1 to 200 m³/h, with a preferred range of 0.1 to 100 m³/h, covering the more demanding ventilation applications Kit 2 is designed for. At 243g and 236 x 108 x 45mm, it remains compact and easy to carry to site regardless of which accessories are in use.
Kit 1 covers residential ventilation commissioning and standard grille measurement. Kit 2 is the version for engineers working across duct testing, commercial ventilation and varied outlet types who need the full accessory set from the outset.
The flow straightener is what extends this kit's capability beyond Kit 1 — turbulent airflow at certain outlets would make funnel-only readings unreliable, and the straightener resolves that for a genuinely wider range of applications. Two funnel sizes cover more outlet formats, reducing how often a reading has to be improvised rather than taken properly. The instrument itself is identical to Kit 1, so choosing Kit 2 is really a decision to have the full accessory set from day one rather than discovering the need for a flow straightener partway through a job.
Order the Testo 417-2 Bluetooth Digital 100mm Vane Anemometer Kit 2 online today.
| Brand | Testo |
|---|---|
| Model | Testo 417 – Kit 2 |
| Vane Diameter | 100mm |
| Velocity Range | 0.3 to 20 m/s |
| Velocity Accuracy | ±(0.1 m/s + 1.5% of mv) |
| Velocity Resolution | 0.01 m/s |
| Volume Flow Range (Instrument) | 0 to 99,999 m³/h |
| Volume Flow Range (With Funnel Set) | 0 to 440 m³/h |
| Volume Flow Range (With Flow Straightener) | 0.1 to 200 m³/h (Preferred 0.1 to 100 m³/h) |
| Volume Flow Resolution | 0.1 m³/h (0–100 range); 1 m³/h (remaining range) |
| Temperature Range | 0 to +50°C (NTC Sensor) |
| Temperature Accuracy | ±0.5°C |
| Temperature Resolution | 0.1°C |
| Weight | 243 g |
| Dimensions | 236 x 108 x 45 mm |
| Operating Temperature | -20 to +50°C |
| Storage Temperature | -20 to +50°C |
| Protection Class | IP40 / IP20 |
| Housing Material | ABS + PC / TPE |
| Battery | 3 x AA |
| Battery Life | 50 hours |
| App Compatibility | Testo Smart App – iOS & Android (Free) |
| Kit Includes | Testo 417 Vane Anemometer, 2 x Funnels & Flow Straightener (0554 4172) |
