The Testo 416 is a Vane Anemometer purpose-built for airflow measurement inside ventilation ducts, with a 16mm probe shaft and an 850mm telescopic extension designed to reach into duct positions that a larger vane probe can't access. While the Testo 417 is built for grille and outlet measurement, the 416 is the duct insertion tool in the range.
The probe connects to the display via a 1.5m cable, so the probe can be inserted into an overhead or awkwardly positioned duct while the display stays within easy reach at floor level. Velocity is measured across a range of 0.6 to 40 m/s with an accuracy of ±(0.2 m/s + 1.0% of mv) and 0.1 m/s resolution, covering standard residential ventilation through to higher-velocity commercial and industrial duct work.
The instrument automatically calculates time and point averages, which is useful for carrying out a multi-point duct traverse without manually logging each reading. Once duct area is entered, it also calculates volume flow in cubic metres per hour or cubic feet per minute. It's compatible with the Testo Smart App, which provides a second display, in-app duct configuration, graph history and data storage, with PDF or CSV reports generated directly from site.
Battery life is rated at approximately 60 hours from 3 x AA batteries, and the instrument is rated IP40 with the probe rated IP20. A transport case and calibration protocol are included.
The 850mm telescope and slim 16mm probe shaft give this instrument access to duct positions that standard vane probes can't reach, while the wide 0.6–40 m/s range covers everything from residential ventilation checks through to high-velocity commercial and industrial duct work. Automatic time and point averaging removes the need to manually log a multi-point traverse, and Testo Smart App connectivity turns a phone into a second display with in-app duct configuration and fast reporting. Paired with a Testo 417 for grille and outlet work, it gives full coverage for a proper HVAC commissioning job.
Order the Testo 416 Digital 16mm Vane Anemometer online today.
| Brand | Testo |
|---|---|
| Model | Testo 416 |
| Probe Shaft Diameter | 16mm |
| Probe Length | 329mm |
| Telescope Extension | Up to 850mm |
| Cable Length | 1.5m |
| Velocity Range | 0.6 to 40 m/s |
| Velocity Accuracy | ±(0.2 m/s + 1.0% of mv) |
| Velocity Resolution | 0.1 m/s |
| Dimensions | 135 x 60 x 28 mm |
| Weight | 323 g |
| Operating Temperature | -10 to +50°C (Probe: -10 to +70°C) |
| Storage Temperature | -10 to +50°C |
| Protection Class | IP40 (Instrument) / IP20 (Probe) |
| Housing Material | ABS + PC / TPE |
| Battery | 3 x AA |
| Battery Life | 60 hours |
| App Compatibility | Testo Smart App – iOS & Android (Free) |
| Includes | Transport Bag, Calibration Protocol & 3 x AA Batteries |
