Testo 405i Bluetooth Thermal Anemometer

Testo 405i Thermal Anemometer

The Testo 405i Thermal Anemometer offers accurate measurement of air velocity, temperature, and volume flow. Compact and easy to use, this smart probe works with smartphones and tablets to deliver reliable readings. It is ideal for HVAC professionals needing portable yet professional-grade measurement solutions.

The device features a telescopic shaft that extends to 400 mm, making it suitable for both room and duct applications. Its Bluetooth connectivity allows seamless operation through the Testo Smart Probes App, providing flexibility to monitor and document values from a distance. Measurement values display in real time, with the option to generate reports instantly.

App-Based Control and Reporting

With the Testo Smart Probes App, users gain remote access to all data. The app simplifies the setup of volume flow measurements and enables multi-point or timed readings. Reports can be exported as PDF or Excel files and shared directly from the app. It even allows users to add comments and photos to reports before sending them.

Reliable and Practical in the Field

Lightweight and battery-powered, the Testo 405i Thermal Anemometer is easy to carry and use across jobs. It suits service engineers needing quick, accurate checks or more in-depth airflow analysis. Pairing with the Testo 605i Thermal Hygrometer enables cooling or heating performance evaluation. Designed for real-world use, it balances ease of use with professional precision.

Key Features

Measures airflow velocity and volume flow precisely
Telescopic shaft extends up to 400 mm for flexibility
Works with iOS and Android via Bluetooth 4.0
Compact design for easy transport and use in the field
Uses Testo Smart Probes App for real-time readings
Generate multi-point and timed average measurements
Export measurement reports as PDF or Excel files
Enables cooling or heating performance checks with 605i
Battery-powered with up to 15 hours of use
Includes calibration protocol for compliance assurance

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Specification	Details
Product name	Testo 405i Thermal Anemometer
Manufacturer part code	0560 1405
Measurement principle	Hot wire (velocity), NTC (temperature)
Air velocity measuring range	0 to 20 m/s
Air velocity accuracy	±(0.05 m/s + 2.5% of m.v.) (0–2 m/s)
	±(0.15 m/s + 2.5% of m.v.) (2–15 m/s)
Air velocity resolution	0.01 m/s
Temperature measuring range	-20 to +60 °C
Temperature accuracy	±0.5 °C
Temperature resolution	0.1 °C
Shaft length	Extendable to 400 mm
Dimensions	200 x 30 x 41 mm
Operating temperature	-20 to +50 °C
Storage temperature	-20 to +60 °C
Battery type	3 x AAA micro batteries
Battery life	Approx. 15 hours
Device compatibility	iOS 7.1+, Android 4.3+, Bluetooth 4.0
App required	Testo Smart Probes App
Warranty	2 years

Specification

Details

Product name

Testo 405i Thermal Anemometer

Manufacturer part code

0560 1405

Measurement principle

Hot wire (velocity), NTC (temperature)

Air velocity measuring range

0 to 20 m/s

Air velocity accuracy

±(0.05 m/s + 2.5% of m.v.) (0–2 m/s)

±(0.15 m/s + 2.5% of m.v.) (2–15 m/s)

Air velocity resolution

0.01 m/s

Temperature measuring range

-20 to +60 °C

Temperature accuracy

±0.5 °C

Temperature resolution

0.1 °C

Shaft length

Extendable to 400 mm

Dimensions

200 x 30 x 41 mm

Operating temperature

-20 to +50 °C

Storage temperature

-20 to +60 °C

Battery type

3 x AAA micro batteries

Battery life

Approx. 15 hours

Device compatibility

iOS 7.1+, Android 4.3+, Bluetooth 4.0

App required

Testo Smart Probes App

Warranty

2 years

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Testo 405i Bluetooth Thermal Anemometer

Testo 405i Thermal Anemometer

App-Based Control and Reporting

Reliable and Practical in the Field

Key Features

Reviews

Testo 405i Thermal Anemometer

App-Based Control and Reporting

Reliable and Practical in the Field

Key Features

Technical Specifications

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